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Outlook Web Access is no longer loading

Posted on 2013-01-14
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Last Modified: 2013-01-20
Outlook Web Access isn’t working any longer. Iit stopped to work just after the recent Tuesday updates have been applied (not sure if that has anything to do with it).

We're using Exchange 2010, version 14.2 (Build 247.5) SP2

The error message is:
An error occurred and your request couldn't be completed. If the problem continues, contact your helpdesk with this HTTP Status code: 500.

Request

Url: https://webmail.*******.***:443/owa/

User host address: 192.168.**.**

OWA version: 14.2.328.9

Exception
Exception type: System.Web.HttpException
Exception message: Request timed out.
Call stack
No callstack available
Outlook Web App didn't initialize. If the problem continues, please contact your helpdesk.
Couldn't find a base theme (folder name=base).

•I have rebuilt the virtual directories for OWA to no avail
•All files exist as per this article: http://exchangeserverpro.com/exchange-server-2010-error-outlook-web-app-initialize
0
Comment
Question by:mark-199
5 Comments
 
LVL 9

Expert Comment

by:TazDevil1674
ID: 38774391
I had similar issue and ended up uninstalling .NET 3.5 and reinstalling...
0
 
LVL 19

Expert Comment

by:R--R
ID: 38774398
Which update have you installed?
0
 
LVL 52

Expert Comment

by:Manpreet SIngh Khatra
ID: 38774404
I guess you can go to .Net 4.0
Also plan to get with RU5v2

- Rancy
0
 

Accepted Solution

by:
mark-199 earned 0 total points
ID: 38777703
It seems as if the recentMS updates have broken CAS...
The solution was to run the Cas update package in Powershell:
C:\Program Files\Microsoft\Exchange Server\V14\Bin>.\UpdateCas.ps1

This at least restored OWA but it now forces our users to logon twice to OWA (We are publishing OWA through TMG so I will need to do some more work).
0
 

Author Closing Comment

by:mark-199
ID: 38798046
Solved the problem myself.
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