Dropped Network Connection Breaks Connection To Local SQL Server
Apr 2, 2008
Let me set the stage of my testbed configuration: On Windows XP SP2, my default connection to the Internet is via wireless express card modem using EV-DO via Verizon Wireless. Let's call this connection A. I also have a traditional wireless network connection (802.11g) that is always enabled. Let's call this connection B. Connection A is always connected during normal business hours. Connection B is not and is often searching for a wireless network to connect to when nothing is in range.
Yesterday, connection B was continuously trying to connect to a wireless network not under my control, meaning that the connection was never established and notification messages continually popped up to complain of this fact. Over time, I've learned to ignore these messages and go on doing my daily work without much thought of the possible implications.
Then, things started to get odd. I was running our application, WebWatchBot, to perform some simple tests of various websites and servers, when I started to get messages from the application that database connectivity was lost, which is a message that pops up to inform the user that the connection is forcibly dropped by SQL Server. After a few moments, the connection to the database was re-established and the message went away. Since I was actually working with SQL Server, I thought it was an anomoly, so I continued on. Then, it happened again. And again. Then, I noticed that the "database connectivity lost" message started to coincide with the wireless connection's (connection B) inability to connect with a wireless network.
Why would this be happening? The database and application are on the same exact computer. The connection to the database is via ODBC drivers over tcp/ip, but why would connection B affect this?
Some added information that may prove useful:
Client side:
What is the connection string in you app or DSN? (please specify)
DRIVER=SQL Server;SERVER=HIGHNOTEWEBWATCHBOT;Database=WebWatchBot;UID=sa;PWD=*****
If client fails to connect, what is the client error messages? (please specify)
[Microsoft][ODBC SQL Server Driver]Communication link failure
Is the client remote or local to the SQL server machine? [Remote | Local]
Can you ping your server? [YES | NO ]
In cmd.exe console, type €œping -a <server_name>€?.
Can you telnet to your SQL Server? [YES | NO, please specify the error message ]
In cmd.exe console, type €œtelnet <server name> port, where port can be 135, 445 or sql_server_tcp_port. If your cmd.exe console turns into a complete black screen with a cursor flushing on top left corner, you are connected. Type ctrl+€™[€˜ to bring up telnet prompt and type €œquit€? <enter>.
What is your client database provider? [SNAC | MDAC | ADO.NET1.0 | ADO.NET2.0| other (please specify] Or/And, what is your client application? [SQL Management Studio | SQL Profiler | Visual Studio | Other (please specify): WebWatchBot - Website and Server Monitoring Software
Is your client computer in the same domain as the Server computer? (Same domain | Different domains | WorkGroup)
What protocol the client enabled? [Shared Memory | TCPIP | Named Pipes].
Do you have aliases configured that match the server name portion of your connection string? NO
Do you select force encryption on server and/or client? NO
[2] Server side:
What is the MS SQL version? [ SQL Server 2005 | SQL Sever 2005 ]
What is the SKU of MS SQL? [Enterprise | Standard | Workgroup | Express (or MSDE) | other (please specify)].
Microsoft SQL Server Management Studio 9.00.3042.00
Microsoft Analysis Services Client Tools 2005.090.3042.00
Microsoft Data Access Components (MDAC) 2000.085.1117.00 (xpsp_sp2_rtm.040803-2158)
Microsoft MSXML 2.6 3.0 4.0 5.0 6.0
Microsoft Internet Explorer 7.0.5730.11
Microsoft .NET Framework 2.0.50727.832
Operating System 5.1.2600
What is the SQL Server Protocol enabled? [Shared Memory | TCPIP | Named Pipes ]. Use SQL Server Configuration Manager to configure it and check ERRORLOG or event log to confirm.
Does the server start successfully? [YES | NO] If not what is the error messages in the SQL server ERRORLOG?
If SQL Server is a named instance, is the SQL browser enabled? [YES | NO]
What is the account that the SQL Server is running under?[Local System | Network Service | Domain Account]
Do you make firewall exception for your SQL server TCP port if you want connect remotely through TCP provider? [YES | NO | not applicable]
Do you make firewall exception for SQL Browser UDP port 1434? In SQL2000, you still need to make firewall exception for UDP port 1434 in order to support named instance.[YES | NO | not applicable ]
[2a] Tool Used to Connect
What tool or Application are you using to connect to SQL Server (eg: Visual Studio, SQL Server Management Studio, SQLCmd.exe, OSQL, etc) and especially the version of SQL Server (Express, Workgroup, Standard, Enterprise, Developer)
[3] Platform:
What is the OS version? [Windows XPSP2 | Windows 2003 | Windows 2000 | Windows 98 | others (please specify ) ].
Do you have third party antivirus, anti-spareware software installed? [Symantec | Norton | other (please specify)].
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Feb 15, 2008
I created a single step plan that does integrity checks. It fails with the error below. I created a new connection using our clusters virtual sql name.
Executed as user: ACCTCOMsqlagent. ...n 9.00.3042.00 for 64-bit Copyright (C) Microsoft Corp 1984-2005. All rights reserved. Started: 1:10:06 PM Error: 2008-02-15 13:10:49.02 Code: 0xC00291EC Source: {0CF32F3D-A8D1-492A-9C0F-AD4E0FC67D14} Execute SQL Task Description: Failed to acquire connection "Local server connection". Connection may not be configured correctly or you may not have the right permissions on this connection. End Error Warning: 2008-02-15 13:10:49.02 Code: 0x80019002 Source: OnPreExecute Description: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. The Execution method succeeded, but the number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors. End Warning Error: 2008-02-15 13:11:31.26 Code: 0xC0024104 Source: Check Database Integrity Ta... The package execution fa... The step failed.
The agent and db are running under domain accounts and the job is owned by sa.
Thanks for your help.
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May 5, 2014
Occasionally I'm seeing the following error when tranlog or full backup maintenance plan is executing.
Failed-1073573396) Failed to acquire connection "Local server connection". Connection may not be configured correctly or you may not have the right permissions on this connection.
What is strange is that it goes away without any action from myself. We have a tranlog backup that is scheduled every hour. I had this error happen once in the middle of the night. It looks like the job was running fine because almost all the backups are there. I've searched and not found a resolution to this error. I checked the event log and don't see any issues and even tried rebuilding the maintenance plans.
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Mar 4, 2008
Hi All,
We are using the Windows Task Scheduler as a substitute for the SQL Server Agent, which isn't available in the Express edition. The scheduled task just calls a batch file, which in turn, runs a stored procedure using osql with the -E option for a Trusted Connection.
SQL Server Express has been installed using the defaults, which means the service is running in the "NT AUTHORITYNETWORK SERVICE" account. The scheduled task we create is set to run using the "NT AUTHORITYSYSTEM" account.
Now we find that on Windows Vista (tested using Ultimate Edition) that the scheduled task fails to run the stored procedure until the machine is rebooted the first time after installing SQL Server Express. When I say "fail", I mean that the stored procedure isn't executed. The scheduled task however completes and reports no errors. On Windows XP, we do not run into this problem so I suspect it has something to do with the UAC in Vista?
We further found that after installing SQL Server Express and creating the scheduled task in the "NT AUTHORITYNETWORK SERVICE" account, the scheduled task (and stored procedure) runs fine WITHOUT requiring a reboot.
Can anyone explain why a reboot is needed to get SQL Server Express to run the scheduled task correctly under Windows Vista and the SYSTEM account?
Any help or thoughts greatly appreciated.
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Mar 1, 2006
I'm getting "Access denied" error when I try to connect to SSIS from my desktop (Database Engine is fine). I'm a member of sysadmin within SQL, as well as an administrator on the server. I don't have any problem when I log on to the server directly via Remote Desktop and open SSIS.
I went into the surface area config tool, and I see that Database Engine and Analysis Services both expand and have a sub tabs to enable Services and Remote Connections, but Integration Services does not expand to a Remote Connections option, just Services. We're running MSDN Enterprise edition.
Does it matter if all the SQL services are using "Local System" for the logon ? I use an administrative logon on my SQL2000 boxes, and was fiddling with them on the 2005 box yesterday, but it seemed to cause more problems, so they are all Local System for now.
Am I missing something obvious ?
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May 19, 2008
Hi. I'm (very) new to SQL Server. I have run into what seems to be a very common problem, judging by the number of Google hits, but it's not actually in the FAQs here, as far as I can see.
Situation
I installed SQL Server Express with Advanced Services 2005 on my Windows XP Pro laptop, using (with one exception) the default install. The exception was to put the data files on a separate partition (D: ) where I have more free space.
SQL Server Management Studio Express connects happily, and I set up a single data import table.
Issue: bcp Fails to connect to default local instance
I initially tried bcp in output mode, prior to working in earnest on importing my data. However the command line-
bcp MyDatabaseName.dbo.UserProfile out UserProfile.txt -T -c
Fails with the error-
Error = [Microsoft][SQL Native Client]Named Pipes Provider: Could not open a connection to SQL Server [2].
As I understand it, the local instance of SSE is the default, and should use a local (shared memory?) connection. This seems to work for Management Studion Express, but not bcp.
While investigating this problem, I tried enabling remote connections (all types) through the Surface Area Configuration wizard, and found that remote connections using either of:
bcp eSpacePh1.dbo.UserProfile out UserProfile.txt -T -c -S localhostsqlexpress
bcp eSpacePh1.dbo.UserProfile out UserProfile.txt -T -c -S mycomputernamesqlexpress
both work ok.
Extra Info
When starting Management Studio Express, it says something like "Configuring environment for the first time". However it says this every time it is started, not just the first run after installation, does this indicate some configuration data is not being successfully stored?
I have found threads that look similar to my issue-
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=836670&SiteID=1
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=3351349&SiteID=1
However these do not relate directly to bcp, and to be honest my knowledge of SSE is slender enough at this stage that i'm unsure if there are really relevant.
Any hints on how to proceed much appreciated.
Regards: Colin E.
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Jan 25, 2013
My sql server is setup to use windows authentication. From time to time one of the applications on that server would have issues connecting to that server. I changed it to use sql authentication and all of a sudden all the problems went away.
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Jul 2, 2007
hi
i added 2 databases to my SQL server on a machine next door using Microsoft SQL server management studio express... I made sure that the server allows remote connection
then from this computer i pass a connection string to my SQLCLient in VB2005 that looks a bit like this
Code: ( text )
ConnString = "Server=USER-PTDH8Z5ESHSQLEXPRESS;Database=FSS.MDB;Trusted_Con nection=True;User Instance=True"
for which it gives me this error when i open the connection
SQLConnecton.Open()
System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
at System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.Att emptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.Log inNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
at System.Data.SqlClient.SqlInternalConnectionTds.Ope nLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ct or(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateC onnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.Creat ePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)
at System.Data.ProviderBase.DbConnectionPool.CreateOb ject(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.UserCrea teRequest(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionPool.GetConne ction(DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.GetCo nnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenCo nnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at Flying_School_Scheduler.DBEngine.StartConnection() in
whats the big idea?
i'm in a bit of a tight schedule here... can anyone help me here? ??
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Nov 1, 2007
I know this is strickly not a website question, but dunno where else to post...To remotely admin and monitor some functions of the website, I wish to use a local application to connect to the MSSQL DB which is held on the remote webhosting serverI have the following code: Dim StrSQLUN As String = "[UN]"
Dim StrSQLPW As String = "[PW]"
Dim StrServer As String = "[IP][INSTANCE]"
Dim StrDB As String = "[DB]"
Dim strTimeOut As String = "Connection Timeout=0;"
Dim pStrSQLConn As String = "Server=" & StrServer & ";Database=" & StrDB & ";User Id=" & StrSQLUN & ";Password=" & StrSQLPW & ";" & strTimeOut
Dim sqlConn As New SqlClient.SqlConnection(pStrSQLConn)
If sqlConn.State = ConnectionState.Closed Then sqlConn.Open()
This has basically been take from the existing code on the website, but changing to the server details. I had just started dev'ing this app when the admins decided to move the SQL server over to a different server. It was working on the old one, but the new one doesn't. It just times out after whatever time you put in the timeout variable. 0=unlimited, and so just sits there.I am also using the MSSQL Server Management Studio locally to connect to the same database, and although slow, does connect after about a minute or so. I thought they would be using the same type of underlying connection to access the server and database? Is this correct?
Can they put restrictions in place for this specific sort of data access?Does anyone have any suggestions on how to resolve this issue??Thanks for any helpAdam.
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Apr 27, 2008
Hi,A person from my company's IT department approached me a few days ago saying that they followed some instructions on a recent security vulnerability in IIS whereby they where told to turn impersonation off in IIS. I'm afraid I don't know the exact procedure, but I do know that it took down all of my applications with the following error:"Failed to generate a user instance of SQL Server"I do NOT have impersonation enabled in my web.config, however all of my connection strings look like the following:<add name="myConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|myDatabase.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>From what I've read, this type of connection string, which VWD 2005 generates by default, is not the correct way to go about connecting to a database. Could this be my problem??Thanks!
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Dec 3, 2007
Hi,
I am running windows 2003 server with SQL Server 2000 SP4, both running on the same machine in our development environment. We are using anonymous authentication and the website is running in an application pool which uses a user account with access to the SQL server databases.
In our live environment, IIS and SQL are on different physical servers and we use a connection string containing a fully qualified domain name for the server name to connect in standard ASP pages (not .NET):
provider=sqloledb;Server=sqlserver.internal.companyname.net;Initial Catalog=<database name>;Trusted_Connection=yes
This works fine, but in development where both are on the same machine, I want to still use the same connection string, and point sqlserver.internal.companyname.net to my local computer, using a hosts file.
If I do this, I get the error "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.".
If I use localhost, all is fine. If I use the machine name, all is fine. If on the same server in development I point sqlserver.internal.companyname.net to another server with SQL on it, all works fine.
But, I don't want to have to have different code in development and production and I don't see why I have to! Exactly the same setup worked on Windows 2000 advanced server, but now I am running 2003, it does not. Any help would be gratefully accepted.
Thanks,
Peter
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Dec 7, 2006
This is my first time to deploy an asp.net2 web site. Everything is working fine on my local computer but when i published the web site on a remote computer i get the error "Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed" (only in pages that try to access the database)
Help pleaseee
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Sep 17, 2015
I have a SQL Server 2014 installation on a server (CHRIS-PCCHRISSQL).I have SQL Server 2014 management studio installed on local server called Pootle.I have gone through the configuration on server (CHRIS-PCCHRISSQL) inc the following:
(1) I have set up a user on CHRIS-PCCHRISSQL called sqladminuser at server level with the Server Roles of 'Public' and 'SysAdmin'
(2) The computers are both on the same homegroup.
(3) On Chris-PC , I have opened up the firewall port 1433 as Inbound Rule
(4) On Chris-PC, Within SQL Server Configuration Manager,the 'SQL Server Network Configuration for Protocols for CHRISSQL' have been set up as follows:
- The TCP protocol is enabled
- I have set up IP2
as follows:
Active: Yes
Enabled: No
IP Addres: 192.168.0.3
However when I try to connect from SQL Server Management Studio 2014 on my local machine Pootle to Chris-PCCHRISSQL using SQL Server Authentication with the user sqladminuser
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)how to set up a remote connection from SQL Server Management Studio
on my local machine Pootle to CHRIS-PCCHRISSQL
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Jun 19, 2007
Hello,
I have searched every post and tried every connection string there but can't figure out how to connect to my database on my remote server. I am using Visual Developer 2005 Express Edition in C# and uploading it to a Windows server running asp.net 2.0. The domain has not resolved yet.
I am so new to this and have followed many tutorials step by step but none of them address this issue. They just show how to upload it to the server.
Do I need to use the SQL server provided by my host or can the database stay in the App_Data folder?
My local connection string works locally:
<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|add_newSQL.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
When I uploaded to my server I changed SQLEXPRESS to (local) as advised in the forum.
<add name="ConnectionString" connectionString="Data Source=(local);AttachDbFilename=|DataDirectory|add_newSQL.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
When I debug a page I get the <customErrors mode="Off"/>
error message even thought I have already set it in my remote web.config file which may be causing problems itself:
<configuration>
<appSettings/>
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source=(local);AttachDbFilename=|DataDirectory|add_newSQL.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<customErrors mode="Off" />
<compilation debug="false" />
<authentication mode="Windows" />
</system.web>
</configuration>
Thanks for any help you can offer. I wish I could find someone to hire to do this part for me or teach me how over the phone. Any suggestions?
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Feb 16, 2007
Hi, I have been creating a web store, which we will be hosting on our Windows Server 2003 system. I am also writing a windows application that will be running on our client systems on the same network/domain. I have no need to allow internet access to the database, just within our domain. Pretty much the windows application will be running and whenever a customer places an order, the program will automatically pop-up the needed information for our credit card processing, and shipping department. So far I have been able to establish a connection to our server by creating a data connection under the server explorer. However, it does not list any databases whatsoever, the web site has been published using Visual Studio 2005 Professional on the server, and is in 100% working order. I have searched and haven't found anything concrete on this, i'm sure its just something simple that im missing. It appears that the server is definetely connected to the database (since the website is fully functional), but it is not listing the information for other systems to access it. If anyone has any ideas, please let me know. Thank you
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Jun 18, 2007
My connection string (to a remote instance of SQL Server Exress 2005) is exactly the same when the web files are located on my local machine or my remote machine, and while it works fine when I use the local web files, I get the following error when I use the remote files:
"Named Pipes Provider: Could not open a connection to SQL Server [53]"
As you can see, since it works from the local version, I've setup SQL to accept remote connections via TCP/IP and Named Pipes. I'm using IIS7 on the local, and IIS6 on the remote, in case that makes a difference. I have other sites setup the same way, which work fine.
Any thoughts?
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May 21, 2007
Hi,
We have replication setup on a sql server 2000. We encountered issue that the distribution agent goes down (distrib.exe stop running) in the event of network connection broken. We would like to know:
is this the expected result that the distribution agent will go down in the event of communication failure between the distribution server and subscriber server?
if not, is there a way to programmatically control and restart the agent?
Is there any sp in SQL server which can monitor the replication communication error message?
is there any sp in SQL server which can be run to restart the agent?
For the best practice, what do you think we can do to achieve an €˜event-driven€™ kind of mechanism so when an communication breaks, the agent can be restarted by the triggered event (or at least a simple way to automatically restart)?
Thanks
Bill
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May 5, 2006
Hi All,
I've developed an application that connects to a SQL Server 2005 Express database. I created a DSN to connect to the database through ODBC. Currently, I am testing locally and everything works fine.
I would now like to install my application on another workstation and connect remotely to the database located on my development machine.
The client workstation does not have SQL Server 2005 Express installed on it because I would just like my application to connect remotely by creating the DSN and using ODBC. What I'm missing here are the database drivers. The "SQL Natice Client" is not available on this client workstation. How can I deploy the necessary drivers with my installation file so that I may create the required DSN name using the SQL Native Client driver?
Thanks!
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Dec 10, 2007
I get the following error and have been trying to figure out why I keep getting it. Initially, I had placed my project under wwwroot folder and ran it under IIS and it gave this error. Then I moved it to my local C drive and same thing. I am sharing this project with two other co-workers and all our config files and code files are same...they don't get this error but I do. I checked that SQL Server Client Network Utility has TCP/IP and the 'Named Pipes' enabled. I thought maybe I have setting in the Visual Studio 2005 that I'm not aware of that's causing this problem...it can't be the server since my co-workers aren't having this error and can't be anything in the code since all of us are sharing this project through vss. I dont' think using different version of .net framework can create this error. I changed the version from 2.0 to use 1.1x and it gave same error... Any help would be greatly appreciated. Thanks in advance.
Server Error in '/RBOdev' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +739123
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +685966
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +109
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +383
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.GetConnectionHolder() +16
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.LoadPersonalizationBlobs(WebPartManager webPartManager, String path, String userName, Byte[]& sharedDataBlob, Byte[]& userDataBlob) +195
System.Web.UI.WebControls.WebParts.PersonalizationProvider.LoadPersonalizationState(WebPartManager webPartManager, Boolean ignoreCurrentUser) +95
System.Web.UI.WebControls.WebParts.WebPartPersonalization.Load() +105
System.Web.UI.WebControls.WebParts.WebPartManager.OnInit(EventArgs e) +497
System.Web.UI.Control.InitRecursive(Control namingContainer) +321
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692
Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832
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Aug 23, 2006
I added a connection (ADO.NET) object by name testCon in the connection manager - I wanted to programmatically supply the connection string. So I used the "Expressions" property of the connection object and set the connectionstring to one DTS variable. The idea is to supply the connection string value to the variable - so that the connection object uses my connection string.
Then I added a "Backup Database Task" to my package with the name BkpTask. Now whenever I try to set the connection property of BkpTask to the testCon connection object, by typing testCon, it automatically gets cleared. I am not able to set the connection value.
Then after spending several hours I found that this is because I have customized the connection string in testCon. If I don't customize the connection string, I am able to enter the "testCon" value in the connection property of the BkpTask.
Is this an intrinsic issue?
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Nov 19, 2007
I am converting over from MSDE to SQL Express. My front end program is unable to connect to the database. To troubleshoot, from the remote computer I tried connecting with the management program and I get the Error 26 unable to connect.
Here is what I have done: I made sure that the SQL Server configuration has been changed to allow network connections (both TCP and named pipes). I have disable windows firewall on both machines. I confirmed that I can connect from the remote machined to the server by network browsing. Both machines are running XP Proff. There is no other security software running on either machine.
More Info. when attempting to log on I am using the server authntication, I use "sa" as the user id plus my password.
Goal. The front end of database program connects to the server remotely using a program called Hamachi over the internet. This works without a problem on MSDE. But for now I am simply try to connect using the managment program which lets you browse for other serves. When I do this it shows the remote computer, but not the name of the computer but not the SQL server which I type in like the following: "INTELsql1"
What I have not Done: I have not changed any permissions or added any users to the server, since this does not seem necessary. As stated the user of remote machine can connect to the server and change files.
Would appreciate any suggestions or tips. Thanks.
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Apr 12, 2007
I am new to SSIS but this does not seem like it should be a hard thing to do. Here is the background:
Windows Server 2003
SQL Server 2005
SSIS
Logged in to server as Admin
I've created a SSIS package that I want to run as a Job. In it there is a Ole DB Connection to a VFP Database on a Novell Server. Client for Netware Services is started when server is but NOT logged into. When I created the package everything runs fine. Note that I had to login when I created the Data Link. I can even run it from the SQL Server Package Store. As soon as I restart the server and try to run it I get an error that the file path is invalid in both SSIS and the Package Store. I check the connection string and it looks good.
The connection is availible in My Network Places
If I open the connection and login it runs fine again.
How do I intiate the network connection and then close it again??
Cory Bonallo
Retail Services
Developer
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Aug 22, 2007
Hi all,
I have SQL Server Express and VB 2005 Express installed in a Microsoft Windows XP Pro PC that is a terminal PC in our office Network. My Network Administrator has granted my terminal PC for Administrator Use. I tried to do the ADO.NET 2.0-VB 2005 programming in my terminal PC and I could not get a remote connection in the Window Form Application via Window Authorization. I do not know how to make this kind of remote connection in my Network. Please help and advise.
Thanks in advance,
Scott Chang
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Nov 14, 2007
I've just installed VS .NET 2005 and also installed sql Express that come along with itwhen I tried to run a simple web page wih gridview that connect to the sql express with the table that I create and test it status is "Tested connection suceeded" or test query is also successful but when I run I got the following message please help
---------------------------------------------------------------------------
Cannot open database "customers" requested by the login. The login failed.Login failed for user 'myServerASPNET'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot open database "customers" requested by the login. The login failed.Login failed for user 'USFER54-8B481CEASPNET'.Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[SqlException (0x80131904): Cannot open database "customers" requested by the login. The login failed.
Login failed for user 'USFER54-8B481CEASPNET'.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +739123
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1956
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +170
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +349
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +359
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +121
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +137
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83
System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1770
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +17
System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70
System.Web.UI.WebControls.GridView.DataBind() +4
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82
System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +69
System.Web.UI.Control.EnsureChildControls() +87
System.Web.UI.Control.PreRenderRecursiveInternal() +41
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360
Thanks in advance for your help
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Sep 27, 2007
This has to be an easy question.
WORK2 - My workstation (xp pro)
WORK3 - Location of SQL Express 2005
WORK3COMPANY
sa,password
WORK3 is a XPPro, both WORK2 and 3 have full admin rights to their machines and the network, I am using SQL Authentication (sa, password)
I have used the SQL Server Config app to enable the 4 Protocols, then restarted service. I can connect locally to my database via "SQL Server Management Studio Express", and through my VB application. I have checked "allow remote connections" in the database properties.
I do not know what i am missing? any thoughts?
Thanks in Advance
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May 9, 2006
Hello,
I've been looking around in several SQL-Forums and in SQL Books Online but haven't found clear suggestions how to tackle my problem:
Our company has to fill a database with documentation for our contractor. Our subcontractors have to supply information from their branch/craft into this database, too.
Replication (without determining a type at this time) would do fine for data-exchange between us and our subcontractors.
But for working in different companies the networks are not connected
and in some companies/departments connection to the Internet is prohibited at all.
This would result in data-exchange based on files - which wont be a problem as data needs to be updated/exchanged only once a week and is usually done at meetings using DVD-Rs.
scenario in short:
- two-way exchange of data between SQL servers being not connected
- update needed once a week
- our server: SQL Server 2005 Standard (preferred)
- servers of our subcontractors: SQL Server Express 2005 (preferred)
That's the point where I dont know how to proceed:
Is two-way replication based on files possible at all?
I read about Snapshots, but to my understanding this replaces the "whole database" without caring about changes made to it and that's why it wont work for two-way exchange.
I would appreciate your hints how to solve this problem in general or whether I should look out for other solutions - MS Access might work with restrictions - but I would prefer SQL Server.
Thanks for reading until here and in advance for your answers.
Regards,
Michael__H
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Jul 2, 2006
I have a form to submit some data to a database located in the App_Data folder. I have the following connection string:
<connectionStrings>
<add name="ConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|Siven.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
On the form I'm using a DetailsView control and using a SqlDataSource as the datasource, pointing to the above connection string. In realtime, when i submit the data, I receive the following error:
Server Error in '/' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
I'm using discountasp.net as the host, and I did not elect to use the SQL Server databases, I'm just going to use SQL 2005 express. I dont understand why it's not pointing to the db when it's there (and to make sure, I re-uploaded). Is there something I missed here?
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Jan 30, 2007
I'm using the SQLCE 3.0 OLEDB Provider via VC++. I cannot seem to find any C++ documentation on using the Local Connection String. We need it to set the Max DB Size.
My primary question is what is the Property-ID for Local Connection String?
JEK
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Feb 6, 2008
I have a package that uses a for loop to iterate through an unknown amount of excel files and pull their data into a table. However, there will be cases when the file is corrupted or has some sort of problem so that either the transformation will fail or the excel data source will fail with an oledb connection error.
Could anyone suggest a clean way to trap these errors? Specifically, the "Cannot Aquire Connection from Connection Manager", which is the excel connection.
Thanks,
John T
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Mar 1, 2008
Hi,
We are running a software which has a sql database and it runs a data cycle everyday in which it gets data from several other sql servers on our network.
Recently we have starting receiving the following errors during this run;
Network Error IOException: Connection Timed Out: Connect
It finishes most of the queries in the script, but on some (and not always the same tables) it gives the time out error. I am not quit sure where or how to research this problem.
Any ideas are welcome!
Thanks,
Michiel
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Mar 14, 2014
I am running SQL Server 2012 on a VM and am trying to pull data from a network drive (S: or misvnascfs0003).I can import data using the Import Wizard and save the package as an SSIS package. When I try to Run the Package I get The Acquire Connection method call to the connection manager "SourceConnectionExcel" failed with the error...
If I save the file to the VM local drive the SSIS package run fine.When I log into SSIS through SSMS i have to run as "Administrator".
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Mar 27, 2008
When using my Work laptop while at home, how can I log into an SQLServer Express 2005 database on a home server, using Windows Authentication, without having to VPN in and log onto the network at Work? If I VPN into work then I can connect to my home db just fine.
I have a laptop which I carry from work to home each day. I'm a Domain Admin at work so my network login name is DOMAINjoe. At home I have 5 PCs in a home network, WorkGroup is WORKGROUP. When I carry my laptop home I log in exactly as I do at work. All is fine. File sharing, printer sharing, & internet all work between my 5 PCs.
I installed SQLServer Express 2005 on a home PC I use as a server (Vista Business edition). Home server's name is STAR. I developed a database called AddressBk on my laptop (Visual Studio 2008) using my laptop's local copy of SQLServerExpress. App works fine. I copied the Db files onto my home server STAR. My user name on STAR is Joe2, so while logged onto Star as Joe2 I used Star's SQLServer Management Studio Express to connect the AddressBk db to Star's copy of SQLServer Express. All is fine.
Now if I use my LapTop on my home network and try to connect to AddressBk on STAR I get a connection error. I get the error whether connecting using SQLServer Management Studio Express or using Visual Studio 2008. The SQLServer Management Studio Express connection screen shows I'm connecting using Windows Authentication and my User Name is DOMAINjoe. I presume this is the problem as I can not add a user on Star with a Domain Name. Other PCs on my home network can connect to AddressBk db on Star without a problem. If my labtop VPNs into work then I can connect just fine.
Here is the connection string my App uses.
Data Source=STARSQLEXPRESS;Initial Catalog=AddressBk;Integrated Security=True;connection timeout=60
How can I connect to my db without having to VPN into work?
Thanks for any help.
Joe A
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Nov 26, 2006
We have a SQL 2005
clustered server (Microsoft Cluster Services) that is queried from 4 IIS6
Windows Server 2003 frontends. Each frontend runs both classic ASP apps
connection with SQL Server ODBC and .NET2 apps connecting with
System.Data.SqlClient. Ocassionaly we get a string of errors/timeouts opening a
connection lasting maybe 2 minutes.
One the classic ASP
apps we log one of these two errors:
Microsoft OLE DB Provider for ODBC
Drivers (0x80004005)
[Microsoft][ODBC SQL Server
Driver][DBNETLIB]General network error. Check your network
documentation
or
Microsoft OLE DB Provider for
ODBC Drivers (0x80004005)
[Microsoft][ODBC SQL Server
Driver]Timeout expired
on the
ADODB.Connection.Open
On the .NET2 apps we
log
Message Timeout expired. The timeout
period elapsed prior to completion of the operation or the server is not
responding.
StackTrace at
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection
owningObject)
at
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection
owningConnection)
at
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory)
at
System.Data.SqlClient.SqlConnection.Open()
at
System.Web.SessionState.SqlSessionStateStore.SqlStateConnection..ctor(SqlPartitionInfo
sqlPartitionInfo)
Source .Net SqlClient Data Provider
Any ideas for further debugging?
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