Browsing the OWA page opens a blank page. Same issue is observed on the server locally.
Note :- Recreating the OWA virtual directory in IIS dont help.
The issue occurs if web.config file is present at the folder C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\auth.
1. Open the auth folder Under “C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\”
2. Rename web.config file or delete it (Make sure you backup the file)
3. Stop and Start the SBS Web Applications site
4. Do and iisreset /noforce
That should take care of the issue.
Visit : www.aarbintechnology.com