Friday, February 6, 2015

Outlook Web Access doesn't open after rollup/upgrade!

Issue:

After you install update rollup 1,2 or 3 on an Exchange 2010 Client Access Server you often get a blank OWA page when browsing to OWA page.

or

OWA stops working with “reason=0” error

Solution:
To fix this issue you must start updatecas.ps1 in the Exchange Management Shell. 
You can find the script in C:\Program Files\Microsoft\Exchange Server\V14\Bin . The script updatecas.ps1 will handle the OWA and ECP updates. The updatecas script comes with the update rollup.

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