In our SfB Topology i just added a new site and builed a new Skype For Business Enteprise Pool.
It's at the moment a Pilot infrastructure but so far the Front End Server is up, Persistent Chat and we use temporary a Lync 2013 Edge Server as I've few Networking issue with the sfB Edge server.
My problem is that I can't expand Distribution Groups anymore in SfB. when I'm trying to do this I'm getting following error:
Cannon use the distribution group service because the service address is incorrect, although the service is available. Contact your support team with this information.
I tried already to clear the cache on my local PC, I tried to delete the group and re-add it. If i choose the Contact Card that looks fine.