Forum Discussion
A network-related or instance-specific error
Hi,
We have two servers one is sharepoint server and another one is SQL server.
There is still disk space available on both the sharepoint web and the sql server, but it seems like the web server can't connect to the SQL server.
It seems to be flapping... meaning it'll work, then drop, then work, etc.
Today we get continous error in ULS log: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 in sharepoint.
1 Reply
This could be because of multiple reasons
1) If SQL server service is stopped
2) Might be a network issue causing connectivity issues between WFE and SQL. If the servers are VMs, you need to check network specific settings on hosting platform
3) you might want to review this also - https://support.microsoft.com/en-gb/help/951037/information-about-the-tcp-chimney-offload-receive-side-scaling-and-net
4) At the time of getting error in the uls logs, check the eventviewer and sql server logs on SQL server for that time
