Suddenly, my epygi Quadro 2xi no longer registers at the sip servers. I have 6 SIP accounts.
In the SIP registration log, one of these 6 accounts looks as follows:
21:45:29 Registering user 23xxxxxe0 on server sipgate.de
21:45:29 SipRegDlg:OnRegister # 23xxxxxe0@sipgate.de:5060, reg:1, rr:0, id: (empty), pswd:exist, info:[OP#sipgate.de:5060][NP#0:60]
21:45:29 SipDlg:AddServerParams # Equal outbound params in primary server params, must discard outbound params # OID: 257
21:45:29 SipDlg: DetermineInitTarget # Call to primary server # OID: 257
21:45:29 TargetQualifier::QualifyTargets # Try to qualify targets for dest sipgate.de # OID: 257
21:45:29 SipDlg: DetermineTarget # Wait for resolving destination: sipgate.de # OID: 257
21:45:29 TQAgent:UAMsgProc # Resolved addresses for host sipgate.de via default dns
DEST: 217.10.79.9 UDP Port: 5060 TTL: unknown
21:45:29 TargetQualifier::NatHandling # Wait response from NATAgnet # OID: 257
21:45:29 TargetQualifier::NATAgentMsg # Got NAT response: 'fail to get NAT mapping' # ID: 5566598574227466943
21:45:29 SipRegDlg::TQMsgProc # Got failure msg from TQAgent for destination: sipgate.de # OID: 257
21:45:29 Registering error (Incorrect remote address), move to terminate state # OID: 257
21:45:29 SipRegDlg::SetRegNextTimer # Next registration will be in 96 seconds # OID: 257
I did not change anything on the Epygi, as far as I know. I just activated the firewall on the Epygi a few weeks ago, but things were working fine after that.
I already rebooted the switches, quadro itself, the router and the phones.
The ip lines register very slowly, but the SIP accounts do not register at all.
Why is the Quadro failing to get NAT mapping?
When I switch off "developer logging" and just monitor the event log, I do not see any stun messages, success or failure. Stun is activated (stun.epygi.com). Is the Quadro not using STUN and therefore not able to register at SIP servers?
Any suggestions?