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Brian.ax17Brian.ax17 

The underlying connection was closed: Could not establish secure channel for SSL/TLS

Just moved my .NET programs onto Windows 2003 Server from Win2K and have started getting the following error:
The underlying connection was closed: Could not establish secure channel for SSL/TLS

This happens apparently at random after logging on and processing queries, updates and inserts. The program gets further sometimes than others. Any suggestions as to what I should be looking for?

Thanks any pointers,

Brian

DevAngelDevAngel

Hi Brian,

Windows 2003 server is a bit more complicated that most windows os's because the security is screwed down so tight.  That being said, I have done a simple implementation on 2003, using outbound ssl with no problems.

A quick search on the MSDN site revealed this article which may or may not help.

http://support.microsoft.com/default.aspx?scid=kb;en-us;811834