Office Communicator Server

OCS 2007 R2: CRL Issue Causing Address Book Download Error

2011-03-31 2 min read Microsoft Office Communicator Server Security System Administration Zachary Loeber

I ran into this issue recently. End users experienced a red splat in communicator exhibiting that there was an issue syncing the corporate address book. I found this excellent article explaining how an invalid Certificate Revocation List error may be causing this issue. My issue was slightly similar in nature but with some caveats.

Run Updates = Rocket Science

2010-11-05 2 min read Microsoft Networking Office Communicator Server System Administration Zachary Loeber

So, I just recently tried to do some basic updates for ocs 2007 R2 by running the venerable “serverupdateinstaller.exe” found HERE. Thank goodness I setup a highly redundant load balanced farm of front end servers as the first server updated immediately had issues with the front-end services starting. Wow, updates strike again (other stories forthcoming soon, I promise).

Exchange 2010 SP1: Web Services Fix

2010-10-12 2 min read Exchange Microsoft Office Communicator Server System Administration Zachary Loeber

I’m utilizing 2 CAS servers behind an F5 load balancer and was finding that a migrated user to my new CAS array would get a red spat in communicator and get authorization prompts for the autodiscover url. I fixed it, finally, just today.

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