The last weeks we have been experiencing an issue with Lync 2013 edge server.
At random times it stops responding for external clients. It stops respondig on port 443 and 5061 for external clients.
External clients can't connect, and internal can't reach out.
Temporary solution is to restart the Edge server.
External mobile clients, at least android, can still connect when desktop clients can't.
Though they can't call/im other external Lync users in other companies.
The services on Lync edge server is till running when this happens.
Yet to find recurring errors in the log when this happens.
Anyone experienced something similar, or know what to look for here ?