How To Remote Connection To An SQL Server On The Same Network?
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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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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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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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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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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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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Apr 22, 2008
Hi all,
I am having seriuos problems getting VoIP traffic into and out of my network via the ISA server which we just newly installed.
My network topology is such that the phones i am using for the VoIP service, sitting inside my network and behind the ISA server, have to register to some remote proxy server outside my network and as soon as it registers i can begin using the service. The VoIP service is on the platform of SIP and uses udp ports 5060 and 8080.
I have permitted the necessary ports on the ISA server for the service being UDP port 5060 and 8080 but still cannot get my VoIp traffic through the server.
Please i need some help here as regards something i am supposed to do or something i am not doing right on the ISA server to permit my traffic.
I am a newbie to this Microsoft ISA server and i hope you all understand
Thanks in anticipation to your replies.
Leonard.
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Dec 18, 2007
I'm green on this networking stuff so any help is greatly appreciated.
I have setup my home computer as a server and assigned a static IP to it. I installed SQL Server 2005 Developer and allowed remote connections to it through the Surface Area Config tool, added port 1433 TCP and 1434 UDP to firewall's exception list, and started the SQL Server Browser service.
Now I can't seem to remote connect to this SQL Server from my office network. Is there something I'm doing wrong here?
Thanks!!
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Aug 30, 2006
When I create a new odbc connection to a SQL server 2005 Db I get a failure telling me dat de SQL server does not allow remote connections.
How can I allow the server to allow this.
Any help appreciated
regards
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Sep 19, 2007
Hi all,
In my office computer network system (LAN), my Windows XP Pro PC has SQL Server Express and VB 2005 Express installed and I was granted to have the Administrator priviledge to access SQL Server Express. I tried to create a SQLCLR project in my terminal PC.
1) I tried to set up a remote connection to SQL Server Express in the following way: SQL Server EXpress => SQL Server Surface Area Configuration. In the Surface Area Configuration for Service and Connection - local, I clicked on Remote Connection of Database Engine, SQLEXPRESS and I had a "dot" on "Local and remote connections" and "Using TCP/IP only". Then I clicked on "Apply" and "OK" buttons. Then I went to restart my database engine in SQL Server Management. When I went to check SQL Server 2005 Surface Area Configuration, I saw the arrow is pointing to "Service", not to "Remote Connections"!!!??? Is it right/normal? Please comment on this matter and tell me how I can have "Remote Connecton" on after I selected it.
2) After I restarted the database engine (I guess!!), I executed the following project code (copied from a book) in my VB 2005 Express:
//////////////--Form9.vb---/////////////////
mports System.Data.SqlClient
Imports System.Data
Public Class Form9
Dim cnn1 As New SqlConnection
Private Sub Form5_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'Compute top-level project folder and use it as a prefix for
'the primary data file
Dim int1 As Integer = InStr(My.Application.Info.DirectoryPath, "bin")
Dim strPath As String = Microsoft.VisualBasic.Left(My.Application.Info.DirectoryPath, int1 - 1)
Dim pdbfph As String = strPath & "northwnd.mdf"
Dim cst As String = "Data Source=.sqlexpress;" & _
"Integrated Security=SSPI;" & _
"AttachDBFileName=" & pdbfph
cnn1.ConnectionString = cst
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Create a command to create a table
Dim cmd1 As New SqlCommand
cmd1.CommandText = "CREATE TABLE FromExcel (" & _
"FirstName nvarchar(15), " & _
"LastName nvarchar(20), " & _
"PersonID int Not Null)"
cmd1.Connection = cnn1
'Invoke the command
Try
cnn1.Open()
cmd1.ExecuteNonQuery()
MessageBox.Show("Command succeeded.", "Outcome", _
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'Create a command to drop a table
Dim cmd1 As New SqlCommand
cmd1.CommandText = "DROP TABLE FromExcel"
cmd1.Connection = cnn1
'Invoke the command
Try
cnn1.Open()
cmd1.ExecuteNonQuery()
MessageBox.Show("Command succeeded.", "Outcome", _
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'Declare FromExcel Data Table and RowForExcel DataRow
Dim FromExcel As New DataTable
Dim RowForExcel As DataRow
FromExcel.Columns.Add("FirstName", GetType(SqlTypes.SqlString))
FromExcel.Columns.Add("LastName", GetType(SqlTypes.SqlString))
FromExcel.Columns.Add("PersonID", GetType(SqlTypes.SqlInt32))
'Create TextFieldParser for CSV file from spreadsheet
Dim crd1 As Microsoft.VisualBasic.FileIO.TextFieldParser
Dim strPath As String = _
Microsoft.VisualBasic.Left( _
My.Application.Info.DirectoryPath, _
InStr(My.Application.Info.DirectoryPath, "bin") - 1)
crd1 = My.Computer.FileSystem.OpenTextFieldParser _
(My.Computer.FileSystem.CombinePath(strPath, "Book1.csv"))
crd1.TextFieldType = Microsoft.VisualBasic.FileIO.FieldType.Delimited
crd1.Delimiters = New String() {","}
'Loop through rows of CSV file and populate
'RowForExcel DataRow for adding to FromExcel
'Rows collection
Dim currentRow As String()
Do Until crd1.EndOfData
Try
currentRow = crd1.ReadFields()
Dim currentField As String
Dim int1 As Integer = 1
RowForExcel = FromExcel.NewRow
For Each currentField In currentRow
Select Case int1
Case 1
RowForExcel("FirstName") = currentField
Case 2
RowForExcel("LastName") = currentField
Case 3
RowForExcel("PersonID") = CInt(currentField)
End Select
int1 += 1
Next
int1 = 1
FromExcel.Rows.Add(RowForExcel)
RowForExcel = FromExcel.NewRow
Catch ex As Microsoft.VisualBasic.FileIO.MalformedLineException
MsgBox("Line " & ex.Message & _
"is not valid and will be skipped.")
End Try
Loop
'Invoke the WriteToServer method fo the sqc1 SqlBulkCopy
'object to populate FromExcel table in the database with
'the FromExcel DataTable in the project
Try
cnn1.Open()
Using sqc1 As SqlBulkCopy = New SqlBulkCopy(cnn1)
sqc1.DestinationTableName = "dbo.FromExcel"
sqc1.WriteToServer(FromExcel)
End Using
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
'Read the FromExcel table and display results in
'a message box
Dim strQuery As String = "SELECT * " & _
"FROM dbo.FromExcel "
Dim str1 As String = ""
Dim cmd1 As New SqlCommand(strQuery, cnn1)
cnn1.Open()
Dim rdr1 As SqlDataReader
rdr1 = cmd1.ExecuteReader()
Try
While rdr1.Read()
str1 += rdr1.GetString(0) & ", " & _
rdr1.GetString(1) & ", " & _
rdr1.GetSqlInt32(2).ToString & ControlChars.CrLf
End While
Finally
rdr1.Close()
cnn1.Close()
End Try
MessageBox.Show(str1, "FromExcel")
End Sub
End Class
//////////////////////////////////////////////////////////////////////////////
I got the following error messages:
SecurityException was unhandled
Request for the permission of type 'System. Security. Permissions.FileIOPermission,mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'failed that is pointing to the code statement "Dim int1 As Integer = InStr (My.Application.Info.DirectoryPath, "bin")."
Troubleshooting tips:
Store application data in isolated storage.
When deploying an Office solution, check to make sure you have fulfilled all necessary requirments.
Use a certificate to obtain the required permission(s).
If an assembly implementing the custom security references other assemblies, add the referenced assemblies to the full trust assembly list.
Get general help for the exception.
I am a new Microsoft VS.NET Express user to do the SQL Server 2005 Express and VB 2005 Express programming by using the example of a tutorial book. Please help and tell me what is wrong in my SQLCLR sep-up and project coding and how to correct the problems.
Many Thanks in advance,
Scott Chang
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Jul 12, 2006
Hi
I have two machines, the one has Windows 2003 server and the other has Windows Xp Pro on.
The 2003 one has SQL Standard Edition 2000 on where as the XP Pro has MSDE 2000.
I'm trying to run a windows based app from the 2003 server and it connects to a database on the XP Pro PC.
When running the application i keep getting the following exception:
"A Transport-Level error has occured when sending the request to the server (Provider: Named Pipes Provider, error: 0 - The specified network name is no longer available)
After using Preformance monitor on the XP machine it seems that when the app starts and the user logins in it make a SQL connection but then the connection is lost then the exception pops up. then i click continue and try it again then it works, then a couple of secs when using the system it pops up again. The Performance Monitor Test shows that the SQL connection keep being lost. The network is fine. its has something to do with SQL and Named Pipes and stuff.
When running the app on the Xp machine and the Connection is made to the 2003 machine there is no problem.
There are other connection made to the Windows XP Machine but i doubt that it affects the app.
The Windows firewall is off as well.
Please can anyone help.
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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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Apr 24, 2008
I have an SSIS package which accesses a map UNC path drive. It works fine when I run SSIS from Visual Studio. However, when I run this from a SQL Server job, it gives an error.
I am not allowed to use xp_cmdshell due to security reasons. If someone can point me to right direction, that would be greatly appricated.
Thanks
Z
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Jun 3, 2007
Hi,
I've worked with SQL Server plenty but never in this specific manner. Hoping someone can shed some light.I have a webform on web server A that needs to talk to a SQL server database that web server B accesses via its web application. I do not haveany privelidged access to server B or the sql server it uses (no FTP to webserver, no remote access via Enterprise Manager to the SQL server). The Admin of Server B told me that I can use a DSN connection to talk to the SQL server database that the web app on server B uses. He emailed me the names of the SQL database tables AND a copy of the web.config from server B which shows the DSN implemented like this:<appSettings> <add key="dsn" value="data source=sql3.domainname.net;database=dbname;User Id=dbuserid;password=dbpw;" /> <add key="default_language" value="en" /> <add key="error_email_to" value="someone@domainname.com" /> <add key="baseHref" value="http://www.mysite.com/" /> <add key="website_name" value="$$$$$$$$$$$$$$$$$" /></appSettings>
I was planning to run my webforms on Server A where I do have FTP, Control Panel, etc.So, I wrote this code into my VB.NET codebehind file.
Dim oODBCConnection As OdbcConnectionDim sConnString As String = _"Driver={SQL Server};" & _"Server=sql3.domainname.net;" & _"Database=dbname;" & _"Uid=dbuserid;" & _"Pwd=dbpw"oODBCConnection = New Odbc.OdbcConnection(sConnString)oODBCConnection.Open()... commands to access data and load something into a control on a webformoODBCConnection.Close()
When I attempt to run the webform in my browser from Server A. I'm getting this error:ERROR [08001] [Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied. ERROR [01000] [Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionOpen (Connect()).The error is EXACTLY the same whether I place the appSettings section in server A's web.config or leave them out.I have obvious questions about the error like...Might sql3.domainname.net simply be refusing communication requests that don't come from the Server B domain?Might the sql3.domainname.net be setup so that I need to use another protocol (not tcp/ip)?Might my code need to be changed to support this type of connection (i.e. I didn't code it right)?I spent some time reading http://support.microsoft.com/kb/328306/en-us but I'm at a loss as to what the best course is to take for debugging this.Thanks in advance for any insight you can offer.
Stewart
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Jan 20, 2005
I would appreciate any help anyone can offer
I am developing a web application that needs to access SQL Server. I have implemented forms authentication. My Sql server is on another machine and I am unable to connect because ASPNET is a local account. Is there a way around this, I really need to keep forms authentication and I am forbidden to place Sql Server on the same machine
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Apr 13, 2004
Hi all,
I am trying to connect to remote sql server in vb.net application.
I am getting an error "login failed for user'abc' ".
why am I getting this error, what could be the possible reason.
any help will be appreciated.
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Feb 1, 2007
Hi,
Just want to know what I need to check to make sure the remote connection is configure properly other than "Enable the remote connection" for the server? what ports that need to open up if firewall is running on the Server Machine?
I tested with a remote user, it seems the application just hung there and wait.. wait.. it seems something block the connection.
No error message, If I ping from the remote PC to the server, the response time is in acceptable range.
Thanks!
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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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Jul 23, 2005
We have a database on a shared SQL Server stored on our ISP's server. I canconnect to this via Enterprise Manager from our office, but when I try thesame from Enterprise Manager on my PC at home I get the following message:A connection could not be established to MFSERVER.Reason: SQL Server is not running or access denied.Any ideas?Thanks
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May 3, 2007
hi
I am developing a web application using C# and SQL Server 2000. It works fine when the Application and DB are in same machine. Now I want to connect to the DB located in another machine in the same network.
I used the connection string as follows.
"Data Source=ip add,1433; user id=uid; password=pwd;"
"Data Source=machine name; user id=uid; password=pwd;"
but the appliation always throws the error:
"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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
what is the problem in the connection. Do I need any special configuration that has to applied on the DB machine.
Anyone pls give a solution ASAP.
thanks in advance
yenkay
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Oct 9, 2006
I am trying to connect to the SQL Server 2000 installed on Windows 2003 Server using VB .Net SQL Connection Class. I am getting an error
Error: An error has occured 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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Apr 29, 2008
I'm currently connected to SQL Server 2005 over local network usint (TCP/IP)
every thing is well
The question is how to connect to the server over the intrenet?
my pc info
- windows xp sp2
- dsl line 512
- 2 giga ram
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Nov 29, 2000
Hi all,
I have scheduled a backup on a remote machine. Everyday I FTP these backups from the remote machine to the local drive.
A local drive is maped to the remote machine in Windows NT Explorer but SQLSERVER7 Enterprise Manager can't see this drive so that I could do the backup to it.
Can any one please tell me how to make this work?
Thanks in advance.
Attaullah
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Sep 14, 1999
I need to backup a remote Database to a local device. Does anyone know how I do this . How do I define a remote Network device/ what priviliges are needed
How I do set up the Backup job....
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Sep 12, 2006
Hi,I trying to connect to the sql server in the network. The sqlserver is in the machine called "pinnacle". I am Using the following connection string to connect and i am getting the error "Sql server does not exist or Access denied"Public databaseConnectionStringSQL As String = "Data Source=(pinnacle);Initial Catalog=cms;Trusted_connection=True;User Id=dbuser;Password=password"Any help will be appriciated.Reagrds,Thiyasoft
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Jul 30, 2007
Dear All,I have TWO PCs, one of them having SQL Server 2005 Expressi get sure the TCP is enables , Active, Remote conneciton is enabled via TCP onlyfrom VS2005 (C#) i can add new sqlconnection contorl and configure it with any of the installed DBsbut when i got to the Other PC with VS2005 as well, i can't configure itall i can do is to see the server inthe server list.. but NO databases are retieved at all in the Select database drop down menu any solution or suggestion
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Aug 30, 2007
Hi, I have an issue with ASP.NET 2.0 and SQL Server 2005
My project when hosted in a machine its working, but in case of some other machine it is throwing the following error
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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)I have turned off my firewall and network configuration for sql server and its also done as tcp/ip and named pipes…though it is not working …
The surprise is if I run using IDE its running , in the same machine after hosting it is not running, where the db is in another machine. What could be the problem? Any suggestions would be highly appreciated. Regards,Naveen
Regards,
Naveen
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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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Nov 29, 2007
Here is my environment and problem:
I have VWD 2005 and SSE 2005 installed on my local machine. I also have these installed on my Windows 2003 Server. I developed my database using SSE on my local machine but pointing to directory on my server. I have been developing the web app using VWD on my server. I now want to use VWD on my local machine and point to the project on my server. I am able to open the project. In order to access the database in the "Database Explorer" I use as my "Data Source", "MS SQL Server (SQL Client) and it attaches fine and I can see my tables and data.
Now for my problem:
When I try to run the application "VIew in Browser", which login.aspx page is my first page, I get the page, but it doesn't inherit my master page which has the basic navigation and layout. Then after I try to login I get this message.
The file "W:BBAppApp_DataTimeTracker.mdf" is on a network path that is not supported for database files.An attempt to attach an auto-named database for file W:BBAppApp_DataTimeTracker.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
Here is a portion of my web.config file for the connection string.<connectionStrings>
<remove name="LocalSqlServer" />
<add name="LocalSqlServer" connectionString="Data Source=.SQLExpress;Integrated Security=true;AttachDBFilename=|DataDirectory|TimeTracker.mdf;User Instance=true" />
My website I started with the source code for the TimeTracker start kit and have added more pages and changed the sitemap.
In general I guess I need to know how to handle using VWD on my local machine, but accessing the project on the server. The reason I'm doing this is because my colleague needs to be able to access the web app too to add pages to the site.
Thank you for any help.
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Apr 4, 2008
HI I have installed VS 2005 with that SQL express edition came default and i then installde SQL server Enterprise Edition .....There i created database and tables and other my colleagues are not able to connect to the Database from there System...........I am using This on XP.......Is it possible to access databse from other remote systems .....IF yes What is the procedure to connect from my other computer to my database which is on XP not any Server OS..
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Feb 17, 2004
I have a problem in connecting to my hosting database using .net file.
I am able connect to database with my ASP page.
Any sugession is greately appretiated!
Here is my code:
".net" page:
<%@ page language='vb' debug='true' %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<html>
<script runat="server">
Sub Page_Load(Src As Object, E As EventArgs)
Dim MyConnection As SqlConnection
Dim da AS sqlDataAdaptor
Dim ds As DataSet
MyConnection = New SqlConnection("DSN=***;UID=***;PWD=***")
da = new sqlDataAdaptor("select * from city", MyConnection)
Try
MyConnection.open()
Response.write "Connection Success " & MyConnection.Database & "<br>"
catch sx AS sqlException
Response.write "Connection successful: <br>"
End Try
ds=new Dataset()
da.Fill(ds, "City")
With DataGrid1
.DataSource = ds.Tables("city").DefaultView
.DataBind()
End With
MyConnection.Close()
End Sub
</script>
<body>
<p>
<ASP:dataGrid id='DataGrid1' runat='server'/>
<p>
</body>
</html>
---------------------------------------------
"ASP" page:
Set DB = Server.CreateObject("ADODB.Connection")
DB.Open ConnectionString
SET RSCheckeMail = DB.Execute ("select * from city")
While not RSCheckeMail.eof
Response.write "City: " & RSCheckeMail("Name") & "<br>"
RSCheckeMail.Movenext
Wend
Thanks for your help in advance.
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Aug 31, 2006
Hi all, I am new to SQL Server but I'm trying to learn it.. :)
I've created a database on my campus server. Now I want to configure it so that I can access the database from my laptop computer through internet.
I have an account in the SQL server installed on my remote server. I can connect to the remote server through remote connection.
I appreciate your help,
thank you,
chikitha5466
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