Tuesday, July 1, 2014

SBA users unable to IM using Lync 2013 mobility

I've found an issue where Lync 2013 SBA users could not use mobility due to the undocumented UCWA port, TCP 5088, being filtered by a firewall. The Lync 2013 mobile client would sign in but would time-out during any attempt to use IM.

Please refer to my buddy, flinchböt, who wrote the findings and solution on his blog, http://flinchbot.wordpress.com/2014/07/01/port-5088-missing-from-lync-2013-documentation/