Category Archives: Office Communications Server

Identify Group Chat Users

Posted on November 2, 2012 by

It can be a pain to identify which users have been enabled for Group Chat rooms as there is no attribute in Active Directory that relates to Group Chat. Now, I suppose you could just go and visit each room … Continue reading →

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Group Chat File Transfer Error

Posted on August 3, 2012 by

This is another situation impacted by certificates, and is often seen after the certificate has been changed or replaced on a Group Chat server because it expired or is about to expire. Basically, when somebody tries to send a file, … Continue reading →

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Updating Office Communications Server 2007 Certificates–Alternate Method

Posted on July 30, 2012 by

There are several nice blogs out there on renewing certificates and even replacing certificates. In my most recent case, I had to replace certificates using another method because the issuing CA was being retired and a new issuing CA was … Continue reading →

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msRTCSIP-OptionFlags Set to 2147483007

Posted on July 11, 2012 by

I just love my luck sometimes. So, I hear from one of my co-workers that some accounts have this really odd number for their msRTCSIP-OptionFlags attribute. He is very concerned about what this means. Research will take you down the … Continue reading →

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Job Title not Synching for Communicator

Posted on June 15, 2012 by

I just love some of these off the wall oddities when it comes to OCS and Lync. FYI, I have run into the same issue in Lync as well. In this case, it was OCS. Anyway, the symptoms were simple. … Continue reading →

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OCS/Lync Federation–Need to Prefix Federated User Addresses with “SIP:”

Posted on June 7, 2012 by

It has been several months since I ran into this issue, but I heard a colleague was having a similar issue so I figured I should write it up. What happened in my case is that I set up Federation … Continue reading →

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Troubleshooting PIC Federation

Posted on April 28, 2012 by

Yesterday, there was a significant problem with AOL’s instant messenger when it came to federation with Office Communications Server 2007 R2 and Lync Server 2010 environments. Yes, I know, people should not be using AIM for anything that is critical. … Continue reading →

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NbtNs Query from OCS 2007 R2 to Internet

Posted on April 26, 2012 by

Recently, I have found some strange behavior from my Office Communications Server 2007 R2 Edge server environment. Every 15 minutes, the Edge server sends out three NetBIOS Name Service (NbtNs) queries over port 137 from the Edge server to destinations … Continue reading →

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Outlook Sync Issues

Posted on March 7, 2012 by

I must get at least three or four calls a week with complaints about the Outlook Sync “Errors” that people are seeing. First off, there is no Sync “Errors” folder, it is a Sync Issues folder. Second, you won’t see … Continue reading →

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DNS Load Balancing and Migrations from Office Communications Server 2007 R2 to Lync Server 2010

Posted on January 28, 2012 by

I am in the middle of planning a fairly large migration and one issue has been kind of bugging me. It kept gnawing at me. I was waking up in the middle of the night and just can’t explain why. … Continue reading →

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