Question : Call Manager Administration Page/Directory Service Fails, all other IIS HTML pages work?

We've noticed now that our Corporate Directory button on the IP Phones brings up an HTTP 500 Error every morning, along with that, the CCMAdmin Pages do not load with the same page not found error!? That is until we open VNC to the IP Address, type in the password. Without!!! Even loggin into the server, just having VNC open to the login page, the Admin page and Directory service starts working again??? This sounds like an ASP issue, since other HTML pages open just fine. But what is it about VNC that gets the ASP pages to start working again, we've also noticed in the Event viewer Application Log shows the Active Server Pages service starts when we use VNC... then the rest of the day Active server Pages stops and starts again as people use their directory button on the phone?

HELP!!! I have a ticket open with Cisco Tac, but they cant find anything...?

Answer : Call Manager Administration Page/Directory Service Fails, all other IIS HTML pages work?

Issue resolved, it ended up being a problem with our Windows Server 2000 version, we had to apply the windows updates.