OWA and w2k front-end

Hello,

I’ve a front-end w2k server with exchange 2003. Echange is checked as “front-end server”. When i try a connection with owa via https, i have a message about the certificate. when i accept this certificate, ie shows an error 500.

However, my back-end server works fine, and connections with owa on this server works fine.

There is no firewall between fe and be at the moment.

I think the problem is about virtual server or virtual folder at the FE … But i don’t know what to do with it !

Is there someone that could help me ?