We have been experiencing a problem with the tool for a few weeks now. We've been using it for years without any issues.
Basically, either that I use it for ActiveSync or Outlook Anywhere connectivity tests, I get the same error message:
"The certificate couldn't be validated because SSL negotiation wasn't successful. This could have occurred as a result of a network error or because of a problem with the certificate installation."
My users seem to not have any problems when using Exchange services (OWA, ActiveSync, Outlook anywhere).
Since I've been struggling on this issue for a few days now, can you give me some advice on where to look to guess what the problem is? What I can tell is:
-Did not make any firewall/networking changes that I'm aware of.
-Did not install any updates on Exchange, nor I made any changes to the configuration.
-My cert is valid and current.
Perhaps, could it be due to some change to the tool itself (cipher suites, tls protocols etc)?