A transport-level error has occurred when sending the request to the server

I've tried to search on the web for a solution for this error but i didn't find any working solutions for this problem. We have 2 servers. The first one is the server we use to develop our ASP.NET 2 application. On this server we don't have this error. On the other server (use by our client) we have this error sometime and i don't know why. Both servers have the same configuration and both application have the same web.config file.

I've tried to add a try-catch and retry the query when the error occured. This seems to be working but we don't want to have to change all our connections and since we don't have this problem on the other server we want to find the source of the problem.

Any idea ?

Thanks !

The most frequent cause of this error is restarting SQL Server. Another known cause is altering a database, e.g. from READ_ONLY to READ_WRITE, or taking a database offline/online.

Do any of these apply to your case?