Hi!
I have a Lync 2013 environment that has been up and working for several years now.
This weekend I replaced the certificates on our edge-servers. Everything looks okay except that federation with Lync online has stopped working. Federation with other on-premise Lync-servers is working perfect.
If a Lync online-user is trying to connect to one of my on-premise users, he/she gets 'presence unknown'.
Does anyone know about steps I need to take to restore the federation service with Lync online?
Regards
Magz
Magz