Authentication Failure - Cisco 2811

[cal_bluepool]

Hi, we have been seeing constant authentication failures in the activity logs on our on-prem 3CX system. The gateway we are using is a Cisco 2811 and we can successfully make and recieve calls through it using the system. The authentication is set to "Do not require - ip based" on the 3CX side but we still get the below ouput in the actuvuty logs and i was wondering whether it's something anyone has seen before:

02/11/2021 4:08:17 PM - [CM102001]: Authentication failed for AuthFail Recv Req REGISTER from 192.168.170.15:65073 tid=119043C Call-ID=A3294B85-695D11EB-8002D0DF-875B1B12: REGISTER sip:192.168.170.14:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.170.15:5060;branch=z9hG4bK119043C Max-Forwards: 70 Contact: <sip:.*@192.168.170.15:5060> To: <sip:.*@192.168.170.14> From: <sip:.*@192.168.170.14>;tag=F902308-2251 Call-ID: A3294B85-695D11EB-8002D0DF-875B1B12 CSeq: 4347 REGISTER Expires: 300 Date: Thu, 11 Feb 2021 16:31:33 GMT Proxy-Authorization: Digest username="10006",realm="3CXPhoneSystem",uri="sip:192.168.170.14:5060",response="199cd2eff0c27350a03ed231c4c72eb9",nonce="414d535c1635e77142:742031c3ddcc41aef45266d65f37edda",algorithm=MD5 Timestamp: 1613061093 User-Agent: Cisco-SIPGateway/IOS-12.x Content-Length: 0 ; Reason: Credentials don't match, check that authorization-ID and password match the ones in extension settings

Thanks!

 

[YiannisH_3CX]

Hi @cal_bluepool

Does this happen when performing outbound or inbound calls? The logs you provided are not complete and do not show the entire picture. Usually gateways register to the PBX and not the other way around. This depends of courser of the way you added the gateway to 3CX. Since it's not a supported gateway then we are not sure how it behaves.

Check your logs to see what is happening prior to the error. Does a call come in or going out and authentication is being requested?