I find it very frustrating that when you install Exchange 2010 using Server 2008 R2 that it does not install what you need when installing IIS. This took a few hours to find, but here is the fix. Hopefully it will help someone else.
BMcCann,
I hope you are on Win2k8R2 RTM, and you need to have other authentication components also like Basic, Digest etc…
So to be sure that have complete comonent prerequisites, can you run below cmdlet in powershell, reboot the server and check?
Add-WindowsFeature NET-Framework,RSAT-ADDS,Web-Server,Web-Basic-Auth,Web-Windows-Auth,Web-Metabase,Web-Net-Ext,Web-Lgcy-Mgmt-Console,WAS-Process-Model,RSAT-Web-Server,Web-ISAPI-Ext,Web-Digest-Auth,Web-Dyn-Compression,NET-HTTP-Activation,RPC-Over-HTTP-Proxy
Amit Tank | MVP – Exchange Server | MCITP: EMA | MCSA: M | http://ExchangeShare.WordPress.com
Thanks Amit, that was it indeed. Apparently the Exchange 2010 installation doesn’t install all the right features for the IIS role.
I haven’t actually used your cmdlet, but checked out the list of installed features myself. There I saw these ones missing:
- Basic auth
- Digest auth
- Dynamic Content Compression
- IIS6 Management Console
After installing Basic and Digest authentication, I could just log on to OWA.
So thanks again Amit. I hope knowing these features are missing, solves the problems for the rest as well 
Ruud van Strijp – Network Infrastructure Design in the Netherlands. MCSE: 70-270, 70-284, 70-290, 70-291, 70-294, 70-297. Cisco: CCNA, CCDA, CCNP, CCDP.
