I have something unique I have ran into with my Lync 2013 server. Every morning I have to go into the Lync control panel and temporarily disable all the users (except 2), close the control panel, open it back up and re-enable all users. Restarting the server does nothing and stopping the services and restarting does nothing. Has anyone ran across this before? I did not used to do this. Even better I have 2 users that are admins in the domain and of course I cant restart them. It allows me to disable and re-enable in PowerShell but their Lync never connects, its just stays at trying to sign in. No error codes pop up or anything.