General Network Failure
Dec 26, 2001
Over the course of many weeks the frequency of the following error has been occurring. I have been trouble shooting this problem since I started with the company some 3 weeks ago and I am just stumped.
I'm running SQL7/SP3 on NT4 with current SPs and hotfixes. My default library is NamedPipes with an alias allowed for TCP/IP.
Any help or leads would be appreciated. I've checked for everything the MS KB suggests and it still hasn't resolved my problem!
example of the error:
Microsoft OLE DB Provider for SQL Server error '80004005'
[DBMSSOCN]General network error. Check your network documentation.
/dir/file.asp, line 29
THANKS!
Kim
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Nov 22, 2007
Hi Folks,
This is regarding the intermittent failure of communication between the application server and database server in one of our customer environment. Application error as well as SQL error log shows "General Network Error","Communication Link Failure". Please find below the server configuration
Application Server OS: Win 2003 server + Service Pack1, Standard Edition
Database Server OS: Win 2003 server + Service Pack1, MS SQL Server 2000 + SP4
We have checked the Client/Server Network utility associated with SQL Server and found TCP/IP protocol is used in communication neither than Named Pipes. DSN is used. We have also followed and implemented as per one KB article which mentioned Win 2003 server's feature of preventing Denial of Service attacks (Chance may be there to prevent the valid login packets).We made the registry changes and disabled this feature. A scheduled job which updates the database happens every morning. Also backup was done using a backup utility which needs the exclusive access to DB. So we have asked the customer to use enterprise manager for back up the DB instead of using the other utility to backup. If any one have experienced the same issue, please let me know.
Thanks,
Pranav.
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Sep 30, 2004
Hello all,
We have a Windows 2003 Web Edition server serving a site through IIS. It connects to a Windows 2003 Standard Edition server running SQL 2000 SP3a.
This site receives the following error as seen in the topic:
[DBNETLIB][ConnectionRead (recv()).]General network error. Check your network documentation.
We've configured the server network utility to only allow TCP/IP connections. The connection string for the site is as follows:
<%
' FileName="Connection_ado_conn_string.htm"
' Type="ADO"
' HTTP="false"
' Catalog=""
' Schema=""
MM_connSpankMSSQL_STRING = "Provider=sqloledb;Data Source=SERVER_IP,1433;Network Library=DBMSSOCN;Initial Catalog=ourmaindb_1;User ID=ourmaindb_1;Password=hotcookies;"
%>
Any ideas or tips on solving this issue? We've noticed it is due to larger queries as smaller ones do work with no problems.
The servers are behind a BSD box running iptables, has 1433,1434 along with standard web ports wide open. Anything outbound is allowed.
Some further testing via ODBC on the IIS server improved things. No more connection pooling for the SQL Server driver allows for 1/3 of the query to run. Still 2/3s of it doesn't show up, and that general network error message appears.
Should have 330 rows if it works right.
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May 19, 2004
Hi
While running a DTS, many times the error message: "[DBNETLIB][ConnetionWrite (WrapperWrite()).]General network error. Check your network documentation." appears.
Does somebody knows why?
I am running the DTS from a computer (not the server where the DTS is stored) and it is connected without any problem when this happens.
Thanks!!
Regards
Lautaro - Argentina.
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Oct 4, 2007
Hi Every one,
I am using .Net 1.1 for my web application.
And my database server is SQL Server 2005.
My application is running fine, as i can login to it and also able to view pages. But when i open Order management(having 3K records) its give me error,
General Network Error. Check your network documentation
I have also searched many articles and tried following solutions but nothing working
- connectiontimeout = 0, max pool size = 7500/100, pooling = false
- SSL disabling enforce security false as mentioned in microsoft kb article.
And there's nothing any issue with hardware/firewall as my application's login and other forms are working fine(which use same database with same connection string)
Can any one please help me to solve this error?
With Regards,
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May 26, 2007
Hi We have a written a error log in Global.asax. which capture below mentioned error in the prodcution server. Same applications is working fine in some locations and some loactions we are getting the error.Any body knows why this error is occurs.Any body knows why this error is occurs. Error Message:General network error. Check your network documentation.Stack Trace: at System.Data.SqlClient.SqlInternalConnection.OpenAndLogin() at System.Data.SqlClient.SqlInternalConnection..ctor(SqlConnection connection, SqlConnectionString connectionOptions) at System.Data.SqlClient.SqlConnection.Open() at datalayer.sqldb.Execute(String ProcedureName, SqlParameter[] Parameters) at lms.User.GetUserDetails(String strUserid)ITs at LMS.Login.w_btn_Login_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
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Oct 4, 2007
Hi,I am using .Net 1.1 for my web application.And my database server is SQL Server 2005. My application is running fine, as i can login to it and also able to view pages. But when i open Order management(having 3K records) its give me error,General Network Error. Check your network documentation I have also searched many articles and tried following solutions but nothing working- connectiontimeout = 0, max pool size = 7500/100, pooling = false- SSL disabling enforce security false as mentioned in microsoft kb article. And there's nothing any issue with hardware/firewall as my application's login and other forms are working fine(which use same database with same connection string) Can any one please help me to solve this error?
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Feb 8, 2004
When I try to update the site setting, I get this Error and I don't know how to fix.
Server Error in '/DotNetNuke' Application.
--------------------------------------------------------------------------------
General network error. Check your network documentation.
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: General network error. Check your network documentation.
Source Error:
Line 281:
Line 282: myConnection.Open()
Line 283: myCommand.ExecuteNonQuery()
Line 284: myConnection.Close()
Line 285: End Sub
Source File: C:DotNetNukeComponentsAdminDB.vb Line: 283
Stack Trace:
[SqlException: General network error. Check your network documentation.]
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) +721
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +196
DotNetNuke.AdminDB.UpdatePortalInfo(Int32 PortalId, String PortalName, String PortalAlias, String LogoFile, String FooterText, Int32 UserRegistration, Int32 BannerAdvertising, String Currency, Int32 AdministratorId, String ExpiryDate, Double HostFee, Double HostSpace, String PaymentProcessor, String ProcessorUserId, String ProcessorPassword, String Description, String KeyWords, String BackgroundFile, Int32 SiteLogHistory) in C:DotNetNukeComponentsAdminDB.vb:283
DotNetNuke.SiteSettings.Update_Click(Object sender, EventArgs e) in C:DotNetNukeadminPortalSiteSettings.ascx.vb:287
System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e)
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain()
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573
Please Help!
Thank you,
dlouanis
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Jan 9, 2006
I use sqlclient to connect directly from my mobile 5 pocketpc to a sql server 2005 database on my desktop.
I use a sqldatareader to traverse the results of a query that delivers 2 fields: (1) the filespec, and (2) the image field.
I use a filestream with a binary writer to write the contents of the image data to the pocketpc's storage card.
I have a test table with 10 images, not one more than 4 MB. I cannot complete a test run prior to receiving the general network error.
The pocketPC is connected via activesync to the desktop, and I connect to the database with:
Integrated Security=false;
user id=sa
password=admin.
Any help with this strange error would be greatly appreciated.
Wil
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Oct 11, 2006
Hi I get a "General Network Error Check network documentation" error sometimes, but its only while insert or update statements are fired while selects keep working perfectly.
The Error details are as follows:
General network error. Check your network documentation.
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: General network error. Check your network documentation.
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: General network error. Check your network documentation.]
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream)
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Aug 16, 2005
Hi,I am getting the following error (When i am trying to update the column thru windows service) Please let me know the solution for the following.The following error is comming only when i set CommandTimeout to infinity (Commandtimeout=0).General network error. Check your network documentation. Number 11 Procedure ConnectionRead (recv()). Class 20 State 0 Source .Net SqlClient Data Provider Server Line number 0 Thanks and Best RegardsNagaraju A
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Apr 20, 2005
Hello.
I'm running into a rather intermittent problem when a search query is run on an ASP.Net web application.
The error is 'General Network Error' Check your Network Documentation...
As I said, it doesn't happen everytime which leads me to beleive that there is a problem with the database connection
There's probably no more than 50-60 max users hitting the app at any one time.
Anybody familiar with this?
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Feb 24, 2006
hi guys
i am developing my application on framework 1.1 on asp .net
i am trying to connect to sql server 2005 but it gives me error like general network error check your network documentation.
does any one know how to solve this error then pl reply fast
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Jul 28, 2005
Please help!Getting this error intermittently:System.Data.SqlClient.SqlException: Timeout expired. The timeout periodelapsed prior to completion of the operation or the server is notresponding. at System.Data.SqlClient.SqlCommand.ExecuteReader(Com mandBehaviorcmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() After getting a fair number of these errors I get this one also:System.Data.SqlClient.SqlException: General network error. Check yournetwork documentation. at System.Data.SqlClient.SqlCommand.ExecuteReader(Com mandBehaviorcmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() SQL connection pooling is turned off. All sql parameters passed to thestored procedure and all the data types are correct.*** Sent via Developersdex http://www.developersdex.com ***
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Jul 20, 2005
I am running on Win2k, SQL Server 2000 (sp3), MDAC 2.8 and using aTCP/IP client connection.I get this error when attempting to restore a database.[Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionRead(WrapperRead()).[Microsoft][ODBC SQL Server Driver][DBNETLIB]General network error.Check your network documentation.Does anybody know how to resolve this issue?Thanks
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Mar 11, 2008
Hi ,
can anyone explain what is general network error.
Im facing this error quite frequently during DTS uploading of data.
When ever DTS is running this error is generated and the specific package fails to load the data and continues
loading data for other packages and certainly interupts the loading process.
This error doesnt seems to occur on 1 package but on different.
Has anyone got a solution to solve this issue..
thanks and regards,
Mat
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May 26, 2006
Hi Guys,
I have a problem with my application.when i try to run it to a network pc, show me this message "Network general error". But if i run it to simple pc everything ok.
Database is local. SQL Express agent running locally.Also all protocols for sql server is enebled.
Any ideas,,,,
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Feb 8, 2006
Hi guys,
Anyone encountered this error.
An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description: "[DBNETLIB][ConnectionRead (recv()).]General network error. Check your network documentation.".
The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the
component, but the error is fatal and the pipeline stopped executing.
Need your help...
thanks
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Feb 8, 2006
Hi Guys,
I'm using Native OLE DBSQL Native Client provider to get data from SQL Server 2000 database into SQL Server 2005 database using SSIS.
The problem is I get this error:
An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description: "[DBNETLIB][ConnectionRead (recv()).]General network error. Check your network documentation.".
The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the
component, but the error is fatal and the pipeline stopped executing.
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Jul 5, 1999
When trying to view a web page from my local web server with a database that is connected to a remote sql 7 db I get the following:
Microsoft OLE DB Provider for SQL Server error '80004005'
[DBMSSOCN]General network error. Check your network documentation.
/sql7Test/ASP Page2.asp, line 30
If I upload the page to the web host and view, I can see the page fine. I am using VI6 and can see the data through the data tools, but when I view the project web page, I get the above error.
Does anyone know how to fix this?
Thanks,
Kevin
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Mar 12, 2007
I have a friend at another company that is getting this error:
03/07/2007 16:03:49 Version 21.00.69 - UID - xxx - Error -2147467259 - [DBNETLIB][ConnectionWrite (send()).]General network error. Check your network documentation.
I have checked around and found two potential fixes for this problem. The first one describes this as a problem specific to the Named Pipes protocol. The fix is listed as available from this site:
http://support.microsoft.com/default.aspx?scid=kb;en-us;827452
The second fix is listed as making an additional entry to the registry like this:
The problem arises on a busy SQL system and some requests will randomly seem
to be dropped with a General Network Error.
To fix:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServic esTcpipParameters
Add a new DWORD key SynAttackProtect with value of 0. Restart server.
Can someone tell me if either or both of these approaches is correct?
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Mar 10, 2007
Hello everyone, this post will be a bit lengthy, so please bear with me. I've been programming asp.net for abou 2 years. I'm not a master by any means, and I do things like I learn from books. Here is my standard way of connection to my mssql database (which is on the same server as my site, so I just use "localhost") Dim objConnection As New SqlConnection(Application("dbstring"))
Dim strSQL As String = "SELECT * FROM myTable WHERE this='that'"
Dim objCommand As New SqlCommand(strSQL, objConnection)
Dim objDataReader As SqlDataReader
objConnection.Open()
objDataReader = objCommand.ExecuteReader()
Do While objDataReader.Read() = True
'Do what I need to do with the data
Loop
objDataReader.Close()
objConnection.Close()
objConnection.Dispose()Here's my issue. Our website gets this error 2-4 and as many as 6 or 7 times a day: General network error. Check your network documentation.Line ###: objConnection.Open()I use the method I wrote above for getting data on almost every page in the site. Its a HUGE site, but I've made sure that I close all my connections. This is my global connection string: Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs) Application("dbstring") = "Server=WWW1;database=###;uid=#####;password=#####;Connect Timeout=300;Connection Reset=False;Pooling=False;Max Pool Size=75000;" End Sub Here's my web.config file:<configuration> <system.web> <customErrors mode="Off"/> </system.web></configuration>... This server has only one website running on it, its a dedicated server. Is there something in my code causing this error to happen so much? We have to restart the sql server everytime this error happens for it to go away. Its very disruptive to the website.
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Apr 3, 2008
Hi All,
I have application desinged using VB.Net and sql server 2005. Its been deployed at remote site which is connected to my database server using VPN.
There are 2 machine at the remote site. One machine is working perfectly with all the reports and forms working. second machine is having problem runing one report. Reports is based on View which around 8 tables joined.
It shows the following eror
failed to openrowset
Microsoft OLD DB provider for sql server
DBNETLIB connectionread(recv()). General Network Error. Check your network doucmentation.
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Dec 24, 2007
I am getting "General network error. Check your documentation."
I am using .net 1.1 to connect sql server 2005 database at remote place.
.net code is running on windows xp and database(Dev database) is running on windows 2003 server.
below is my code.
conn = new SqlConnection("Persist Security Info=False; User ID=xxx; Password=pwd; database=WBWT; server=machinename; Connect Timeout=300; Max Pool Size=10");
conn.Open();
cmd = conn.CreateCommand();
cmd.CommandType = CommandType.StoredProcedure ;
cmd.CommandText = "TestForCollation";
SqlParameter param1 = new SqlParameter("@MESSAGE",SqlDbType.NVarChar, 100);
param1.Value= "Dhanaji";
param1.Direction = ParameterDirection.Input;
cmd.Parameters.Add( param1 );
SqlParameter param2 = new SqlParameter("@CATEGORY",SqlDbType.Char, 10);
param1.Value= "Patil";
param1.Direction = ParameterDirection.Input;
cmd.Parameters.Add( param2 );
adapter = new SqlDataAdapter((SqlCommand)cmd);
adapter.Fill(ds); // here it throws exception
When i use VARCHAR data type or Output parameter in stored procedure it gives this error.
For the stored procedure which has not any parameter or only input int parameter is executed sucessfully,
Same SP is excuted sucessfully on local machine. I need urgent help
Also same code works on another database at remote place(QA database)
Thanks
--Dhanaji
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Aug 21, 2006
We have a .net 1.1 application that gets this both with MSDE and SSE but more with SSE.
It randomly crashes with this error on laptops where they have SSE or MSDE installed on the local computer. They're being referenced by the machineNameInstance because (Local)Instance had bugs in the past with network connections disappearing and us getting this error.
Now we're getting this, especially with Intel Wireless Cards on a random but consistant basis.
Under SSE we've had to turn on tcp/ip to make our app run, which tells me that something is preventing it from using shared memory access, which I suspect is that we're not using (Local)Instance, so I tried switching it, and no dice, same problem.
Is anyone else getting this? It's driving us nuts!!!! (and pissing off customers)
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Oct 25, 2004
transferred datbases and SQLagentjobs to a new server. Trying to execute sqlagent jobs
gives
ConnectionRead (WrapperRead()). [SQLSTATE 01000] (Message 258) General network error. Check your network documentation. [SQLSTATE 08S01] (Error 11). The step failed.
External Comminications seem OK
Any ideas what to do about this
Thanks
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Jan 2, 2007
Info: CE.Net 4.2
CF 2
SQL Server 2005
First of all, sorry for the cross post but i need a quick answer on this.
I am executing a CLR Stored Procedure from a Windows Mobile device and regularly get a general network error.
The stored procedure cycles through up to 70 tables, checking for any records between two dates. The LastUpdate field is in each one of the 70 tables and is indexed.
The mobile device regularly reports general network error, which is due to a timeout. Command timeout is now set to 10 minutes but the timeout still occurs.
The stored procedure appears to get stuck on a particular table. If I rebuild the index on this table, it will get past it but then get stuck on the next table.
I set up a maintenance plan to run every 5 minutes (extreme, I know!) but the indices would appear to corrupt (without any activity on the table) in less than this interval.
However, running the exact same query from SQL Server Management Studio works correctly every time and usually within 10 seconds.
I€™m sure that it has something to do with the indices but cannot seem to resolve the issue. It€™s even more confusing how only the mobile device is affected!
Any help or advice would be greatly appreciated.
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Sep 5, 2006
Hi
We have a VB6 app, with SQL2005 database, SQLOLEDB driver
We have it installed at many clients and normally works fine.
We've migrated one client from SQL2000 to SQL2005 and had to move the database to a new machine.
It's now running SQLExpress sp1, on a Win XP sp2 machine
The clients now frequently get either
a) SQL timeouts
or
b) Runtime Error€™2147467259 (80004005)
[DBNETLIB][Connection Read(recv()).]General network error. Check your network document
Errors
I suspect it is something to do with connections not be released (even though we explicitely free them in the app).
Where do I look ?
Thanks
Bruce
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Sep 20, 2007
Hi,
in our environment
- Windows XP
- SQL Server Express 2005
- Internet connection via TCP/IP protocol
The described network error occurs, when we unplug the network cable:
[DBNETLIB][ConnectionWrite (send()).] General network error.
The affected database resides on the locally installed SQLExpress, it doesn't use any network connections. The error doesn't occur immediately, in most cases there are up to 30 seconds where data can be (correctly!) written to the recordset, but after that timeout the connetion is broken.
We already tried out the described workarounds:
- disable named pipes protocol
- set SynAttackProtect=0 in HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesTcpipParameters
The error doesn't occur with MSDE (SQL 2000) or under Vista.
Thanks for help!
Mathias
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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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Nov 13, 2001
I am connecting a access database to SQL Server and lately I have been getting this error every once in a while. Any idea why?
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Sep 6, 2006
I have a MS MSDE 2000 database that is serving 3 database clients. Intermittently, randomly, and more important daily, my clients receive a "SQL Database Connection Error", and they are kicked out of the database. This appears to be correlated when they are writing/retrieving a record.
MS MSDE then writes the following error in it's event log.
--------------------------------
Source: SORules.Gateway.LogErrors
Process ID: 2328
Database connection lost
Error #-2147467259
[DBNETLIB][ConnectionWrite (send()).]General network error. Check your network documentation.
(Source: Microsoft OLE DB Provider for SQL Server)
(SQL State: 08S01)
(NativeError: 11)
No Help file available
OpenRsRead
System.Runtime.InteropServices.COMException (0x80004005): [DBNETLIB][ConnectionWrite (send()).]General network error. Check your network documentation.
at ADODB.RecordsetClass.Open(Object Source, Object ActiveConnection, CursorTypeEnum CursorType, LockTypeEnum LockType, Int32 Options)
at SORules.Gateway.OpenRsRead(Command& C, Boolean& ForwardOnlyCursor)
Stack trace:
at ADODB.RecordsetClass.Open(Object Source, Object ActiveConnection, CursorTypeEnum CursorType, LockTypeEnum LockType, Int32 Options)
at SORules.Gateway.OpenRsRead(Command& C, Boolean& ForwardOnlyCursor)
--------------------------------
Any help, suggestions, or thoughts would be greatly appreciated. This is for a small business line of business application that is critical for everyday business operations. These problems have resulted in lost work, short tempers, and a just frank frustration.
I am just getting started with MS SQL technologies and really need some quality help.
Thank you for your time, and have a great day.
Cheers,
Mark
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Dec 28, 2006
Hello together,
since over a week I've been looking to
find out the reason for two error messages I get from our users and
servers, unfortunately without success up to now.
I really hope you can help me.
We are using Win 2k servers with active directory and SQL Server 2000,
clients are all Win XP with SP2. Versions of access are 2002 &
2003. The errors are userspecific and occur in both versions. The
SQL-Servers are accessed with an adp-file in 2002-format.
We have one usergroup which is member of specially many groups. This
affects the size of their windows access token which becomes constantly
larger. In order to enable those users to still access their mailboxes
on our Exchange servers, the DWORD entry "MaxTokenSize" with the
decimal value "65535" was made to the newly created key "Parameters" of
their registry branch
"HKLMSYSTEMCurrentControlSetControlLsaKerberos ".
Since then those users can not access any of our SQL Servers using the
windows authentification. One of them gets the error
"[DBNETLIB][ConnectionRead(recv().] General network error. Check your
network documentation.", the others the error "Check connection:
Failed: Cannot generate SSPI context".
In case of resetting the registry entries (by deleting them), the one
user receives the same error message as the rest while it doesn't make
any difference to those (but at least they can't connect to their
mailboxes).
After having researched the web, I realised in one of the SQL-Servers
logfiles the entry "Invalid buffer received from client.." which lead
me to start to believe it could have to do something with the kerberos
encryption in the first place. Therefore I asked if changes to the
tokensize had been made. I applied the change with "EXEC sp_configure
'network packet size', 65535 RECONFIGURE" on our testsystem and "EXEC
sp_configure" confirms that the value is run.
Consequence: The entry in the SQL Server log doesn't appear any longer, but the users still receive their error messages.
Do you have any hints?
Your comments will be highly appreciated!
Regards,
caracol
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