Solved Trunk keeps getting unregistered/registered

[vankampen]

Hi, I have 2 unsupported sip trunks. They have been working for years. I have now transferred the Pfsense firewall to a new NetGate box, and a new WAN provider. Since then, the sip trunk keeps getting unregistered every 2 or 3 minutes, and immediately registered again.
I had a gateway with 2 WAN providers (for fail over), but I have disabled one of the WAN interfaces. Over the weekend, this seemed to work, but the problem has returned again. I have also checked and redone the instructions for the Pfsense configuration.

Any suggestions where to look to diagnose this issue better?

 

[vankampen]

I see the firewall test failing. I will first try to fix that

 

[vankampen]

Well everything is configured as in the Guide, but the firewall tests failes on SIP ALG and reaching 5060.
I ran Wireshark, and that works okay for 5090 and onwards, but there is no response from the stun servers on 5060, only requests.

Anyone?

 

[vankampen]

Found it! When I switch back to the old Internet provider, it works. I suspect the new provider is blocking the traffic back from the stun server. Anyway, I am good for now.

 

[TheodorosG_3CX]

Glad to know you resolved it.