OWA 2010 Freezes when trying to access a shared mailbox

Bjarne is correct, try disabling Web Acceleration. I'm running a pair of 3900s on 11.1 with iApp template "f5.microsoft_exchange_2010_cas.2012_06_08". Here's what I had to do with the assistance of support:

 

 

First, disable the Strict Updates option under (iApp >> Application Services >> Properties >> Advanced).

 

 

Then, when you try to go into the individual virtual servers and click "none" on the web acceleration profile you will receive the following error:

 

 

"01070394:3: CACHE::disable in rule (/Common/iApp_Exchange_2010.app/iApp_Exchange_2010_combined_vs_persist_iRule) requires an associated WEBACCELERATION profile on the virtual server (/Common/iApp_Exchange_2010.app/iApp_Exchange_2010_combined_https)."

 

 

The resolve this error, do the following:

 

 

Navigate to Local Traffic >> iRules and click on the rule named "iApp_Exchange_2010_combined_vs_persist_iRule" and comment out the three lines that have CACHE::disable listed. Just put a sign in front of them, and then click Update at the bottom.

 

 

I hope this helps someone.