I have a very annoying ongoing issue, every couple of days our OWA site goes down along with any other IIS sites running on our Exchange server. There is nothing interesting in the event logs pointing to any problems with IIS. The annoying part is that restartting the IIS services does not resolve the issue, I have to completely reboot the server for the OWA site to work again. Everything else on the Exchange Server works fine. I am running Exchange 2003 on Windows 2003 SP2. Everything is up to date, so I have the latest version of IIS.
Any suggestions would be great.