Hi,

I have an enterprise setup of Skype for Business 2015 with the following setup.

2x AD/DNS
1x FE
1x Mediation
2x SQL Back End
1x edge
1x proxy

all servers are using internal ca authority for server to server authentication. proxy and edge server have external UCC certificate for external side.

all users currently access the system externally and all works fine.

When I add a second front end server into the topology 50% of the users get logged out both lync client and lync phone edition. as soon as i shut down the additional front end server all logins work correctly. I am getting no errors in event viewer of either server and replication is working between the two front end servers.

The only thing i notice is sometimes the second front end cannot see enabled users with in control panel.

All Lync services are started on both Front end servers

• Edited by Jimboboosha Tuesday, September 01, 2015 3:20 PM