We use Ring Central Polycom VVX 450s across our organization. I have 2 phones that are occasionally de-registering themselves and stating “No Service” then moments later will come back up. I don’t think it has anything to do with PoE as the phones will stay on during this time. The firewall is allowing for connections out to the IP/Port. Would having inbound connections limited affect this? The phones are on two different switches. Again this is only happening to 2 phones that I’m aware of, out of the 90+ in our environment. Any help would be appreciated. Logs consistently state the following when the outages occur:
032****|sip |4|00|CPlcmSipTcpSocket::ConnectThreadLocal Failed to connect to 104.245.57.227:5090 : Error[Operation now in progress] on SocketAddr (0x1a49940)
032****|app1 |4|00|Failure reason is Failed to connect to server : Error[Operation now in progress]