In my company we have a single domain with a single Windows 2003 server acting as the domain controller and data server. This server is also running Exchange 2003 standard edition and it was upgraded in two stages from an NT4 /Exchange 5.5 system. The server itself appears to be running fine, all users can logon and access their mailboxes via Outlook 2003 without problems. One or two user were interested in Outlook Web Access which naturally is included as standard with Exchange 2003 and was installed along with the rest of the package. However OWA simply isn't working.
From a machine on the network (or on the server itself) I can enter
//servername/exchange in IE and get a log-in prompt. However I enter the username and password (/domainname/username or username@fully_qualified_domainname) it always fails to authenticate and after three tries gives me a
HTTP/1.1 401 Unauthorised
error message. This is the same for all users and all users have webmail enabled.
I have also recently installed Microsoft's SUS software and when I attempt to go the the admin webpage //servername/SUSAdmin the system asks me to log-on (which I don't think it should be doing as I am already logged onto the server with admin rights), the system apparently accepts my log-in but then the IE screen remains completely blank (all white).
This is making me think that the problem is more with IIS or Windows itself rather than with Exchange or SUS. If I enter //servername in IE then I do get the IIS 'homepage' as I would expect. IIS permissions all appear to be OK and I have tried various authentication methods (anonymous, Windows digest etc. without any luck). There are no errors listed in any of the event logs and all other aspects of the server are running correctly
Do I need to uninstall and re-install IIS (is this even possible in Windows 2003 server and will it bring done the Exchange system)? or does anyone know of anything else I should look for?