Network Error 0x2746
here for a quick overview of the site Help Center Detailed answers to any sql server error 17830 questions you might have Meta Discuss the workings and policies an existing connection was forcibly closed by the remote host. of this site About Us Learn more about Stack Overflow the company Business Learn more about hex to decimal hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to resolve network error code 0x2746? up vote 0 down vote favorite We are frequently receives ""Network error code 0x2746 occurred while establishing a connection."" In both windows event viewer and SQL error. We tried to check from windows as well as network team end, but they arises hand that it need to be check from db end. When application team facing slowness they are showing and send ind such error and blamed to db team. Can anyone have idea to resolve this network issue.? sql-server-2012 share|improve this question asked May 4 at 9:50 Jason Clark 424222 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote accepted Jason, here are two links that will help you debug the issue. I would look through your error logs for 18456 errors. Aaron Bertrand has an excellent blog on that topic. https://blogs.msdn.microsoft.com/sqlsakthi/2011/02/06/troubleshoot-connectivitylogin-failures-18456-state-x-with-sql-server/ http://sqlblog.com/blogs/aaron_bertrand/archive/2011/01/14/sql-server-v-next-denali-additional-states-for-error-18456.aspx share|improve this answer edited May 6 at 23:40 answered May 6 at 23:12 Gizmo 6271924 Answers need to contain more than links to off-site resources. If the target of those links is unavailable for some reason (off-line
x) with SQL Server ★★★★★★★★★★★★★★★ Sakthivel ChidambaramFebruary 6, 20116 Share 0 0 I know that there are lot of articles over the internet world with this topic… But this article is from my perspective which has detailed troubleshooting steps… The main problem with troubleshooting connectivity issues with SQL Server is because the error message returned to client is almost generic and incase of login failures, the state is always 1 So let me give you step-by-step approach in troubleshooting connectivity issues with SQL Server. Here is a flow of how connection to SQL Server is made: 1. Protocol used http://stackoverflow.com/questions/37024202/how-to-resolve-network-error-code-0x2746 for making connections to SQL Server Connecting is made using a protocol based on the "Client Protocols" order specified in your local box. In the case of screenshot given above, the connection made to any SQL Server fromthis client machinewill use "Shared Memory" protocol first and if that connection fails, it will try to use "TCP/IP" protocol and if that fails, connection request will be made using "Named https://blogs.msdn.microsoft.com/sqlsakthi/2011/02/06/troubleshoot-connectivitylogin-failures-18456-state-x-with-sql-server/ Pipes" protocol. This is because I have all three protocols "Enabled" and I have specified the order in this way. Shared Memory protocol can be used only for local server connections whereby SQL Server should be running in the same box where you are trying connect. This protocol will not help you to connect to a Clustered SQL Server instance because the IP address of SQL Server is different from your local node. You can also force to use specific protocol using syntax: TCP:SQLSRVRNAME\INSTANCE for forcing connections to use TCP/IP protocol NP:SQLSRVNAME\INSTANCE for forcing connections to use Named Pipe protocol instead you can also use \\.\pipe\instancename\sql\query LPC:SQLSRVNAME\INSTANCE for forcing connections to use Shared Memory protocol. LPC stands for Local Procedure Call. If you force these protocols, then connectivity will happen only using specific protocol and if that fails, connection will fail without trying with further protocols. If you are connecting using a SQL Server alias created in the local client, then the protocol specified in the alias will only be used. 2. Connecitivity flow when using TCP/IP Protocol While making connections using TCP/IP protocol, the client driver will check whether the instance is DEFAULT instance (MSSQLSERVER is the instance nam
with several users having their VPN tunnel randomly drop. In reviewing the NCService log, I see the following messages in all cases:2008/12/11 16:11:35.105 dsNcService: tC04 "DebugId" 'DSSSL_recv' [Debug] DSSSL_recv: https://forums.pulsesecure.net/topic/pulse-connect-secure/11857-network-connect-tunnel-drops-with-error-control-channel-disconnected-due-to-error returned 0x2746 error. 2008/12/11 16:11:35.105 dsNcService: t4EC "DebugId" 'ncphandler' [Debug] ncphandler: control channel https://www.experts-exchange.com/questions/28593558/Network-error-code-0x2745-occurred-while-establishing-a-connection-the-connection-has-been-closed.html disconnected due to error 2746 2008/12/11 16:11:35.105 dsNcService: t4EC "DebugId" 'session' [Debug] session: reconnecting attempts = 1 2008/12/11 16:11:35.105 dsNcService: t4EC "DebugId" 'session' [Debug] session: Registering new timer for reconnection 2008/12/11 16:11:35.105 dsNcService: t4EC "DebugId" 'adapter' [Debug] adapter: unregistering the adapter IO handlerIn some cases the error is 2745 rather than 2746. network error Has anybody else seen this or know what may be causing it? Bill10421 Contributor (9) May 29, 2009 3:24pm I'm experiancing the same error, did you have any resolution? Swal64 Contributor (9) Jun 11, 2009 4:50amWe experienced the same error and upgrading to IVE version 6.3 R4 resolved it. Frederic Contributor (9) Aug 28, 2009 2:14am Hello,I'm running IVE OS v6.3R1.2 and I'm experiencing the same network error 0x2746 issue.I've asked JTAC to investigate because I did not find any trace of this issue on the release note 6.3R4Regards. Jickfoo Contributor (9) Apr 23, 2010 4:33pmBUMP6.5R3.1 is give me this same problem. Anyone have any ideas? cgpoonam Contributor (9) Jun 9, 2010 12:22am Did anyone find the cause or resolution for the "ncphandler: control channel disconnected due to error 2746" problem?Appreciate your help in advance. MattS Contributor (9) Jun 9, 2010 3:11amHi,The information I can find on error 2746 is that is a disconnect due to a TCP RESET. The RESET usually happens due to the IVE or devices between the IVE and NC. A tcpdump on the IVE external port and NC ethernet port will find out where the RESET is coming from. If the SSL control channel traffic is not being transferred between the NC client and the IVE then the NC session will be closed.Some possible causes are client DHCP leases expiring; client interfaces going down; SSL traffic blocked so the IVE RESETs the connection; client IP changing when roaming is not enabled; third party software such as AVs or Firewalls on the client PC interfering with the NC connecti
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