Hi Guys,
I've spoken with MS-Support and we've done the following :
Requirement :
The Hotfix RU1 was installed, OWA didn't functioned !
Open Powershell
1. Get-OwaVirtualDirectory
The OWA Virtual Directories from both Exchange 2010 Server were displayed
2. We copied the Identity for the OWA Virtual Directory from CAS-Server
3. we run the command
Remove-OwaVirtualDirectory -identity "the identity what we copied earlier"
4. We recreated the OWA Virtual Directory on this server
New-OwaVirtualDirectory -Name "owa" -WebSite "Default Web Site"
5. We checked that OWA Virtual Directory was correctly recreated
Get-OwaVirtualDirectory
6. From Exchange Management Console we checked the OWA settings. We add the InternalURL according to the URL from the second CAS
https://cas-servername/owa
7.We checked the IIS settings, everything was ok
8. From Command Prompt we made an IIS reset
9. We tested OWA. It was working !!!
Greets
Nico