Error While connecting to Team Foundation server

I had a working version of the team foundation server running on Windows 2003 OS. Now I am getting an error "The request failed with http status 503 : service unavailable ".

I searched various forums for the resolution. The solution that I got was

1.restart the TFSwebsite in inetmgr (or iisreset)
2. Restart the TFSScheduler service in services.msc

This does not seem to work. I would appreciate if someone could give a solution at the earliest.

Thanks in Advance

Narayan

[724 byte] By [Narayan_jn] at [2008-2-15]