This is driving me to distraction. I have a switch with multiple clients who are all working fine except for one and I can’t figure out what makes them different. I have tried every NAT setting in the ATA
(SPA112 ATA with 2 x FXS, 1 x LAN), stun server on and off, different sip ports, different RTP ports and it still fails. I have left the location with it working only to have it fail later. He always gets registered but when a call is sent it doesn’t respond so the caller hears no ring and the phone does not ring.
Yesterday he mentioned that when the phone is working the WiFi slows down significantly. No idea why or if it is related.
He has a radio station streaming music. I wondered if that might be interfering. That’s why I tried changing the SIP port and the RTP
ports but that didn’t seem to help.
It smells like a network problem to me but I am running the same ADSL
device here and other clients are working behind a NAT gateway so I am at a loss as to what might be wrong. Could it be the streaming?