Forum Discussion
ewest111
Nimbostratus
NimbostratusExchange 2013 Pool
I have asked this question once before but after doing the software update on my BIG IP LTM I'm back to the same scenario and can't get it figured out. Using the latest template I have created an iA...
Which version of BIG-IP did you upgrade from and to? And which version of the iApp are you running?
The only consistent cause of this issue I've seen is IIS cert mismatch on the CAS servers. Exchange uses the cert to generate a session cookie (even when offloading SSL). If the next request after the logon POST sends the cookie to a CAS that can't unhash the cookie because its cert is different, you get the logon page again as if you were starting a new session.
Can you confirm that your second request is going to the other CAS, and that the IIS certs are the same on both?
