I discovered a somewhat irritating issue with Windows 2008 today. I'm trying to build an OCS Access Edge (AE) and want to federate with another company running Windows 2008. I can connect remote access clients to the public Internet with no issues, but federation fails with no errors -- except federated contacts display in MOC as "presence unknown." How do I resolve this "presence unknown" display issue?
As many of you are probably aware, Windows 2003 comes with a larger number of root authorities (i.e., list of third-party certificates that the operating system will "trust"). Unlike Windows 2003, Windows 2008 has a much smaller list. Make sure that the root authority certificate from your AE that is running Windows 2008 is also in the trusted root authority list of the federated partner. For example, the root authority certificate for Comodo is NOT installed by default on Windows 2008.
Dig Deeper on Collaborative Applications
Related Q&A from Hugh Marlor -- Retired Expert
Many users want to know if Lync 2010 can coexist with previous Microsoft UC clients Live Communications Server and Office Communications Server. ...continue reading
Unified communications integration and collaboration thought leader Hugh Marlor details the circumstances under which you need to use Subject ...continue reading
When testing our media gateway configurations for OCS 2007 R2 for inbound and outbound calling to/fr
Unified communications integration and collaboration thought leader Hugh Marlor helps troubleshoot an error in Office Communications Server 2007 R2 ...continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.