SIP: process auth: Match challenge for user=x, realm=3CXPhoneSystem

[it@agel]

Hello,

Since updating our Debian VM to 15.5 SP1, including the templates and latest firmware on our Snom D375, our Snom deskphones are lately producing (read: spamming) above error log continously. The spam is so worse, that after a day the log gets full and the phone gets unresponsive. Help is appreciated.

Details:

Debian 3CX v15.5 SP1
Snom D375 8.9.3.64
Latest Snom template

The problem is on all our D375 phones with different users.

Thank you in advance.

 

[it@agel]

3CX console is telling in red that 8.9.3.64 is unsupported. Reverting back to .60 now, will let you know the results.

 

[YiannisH_3CX]

Hello it@agel

You actually need to go up to 8.9.3.66 to be on the supported firmware version for SP1. Try upgrading and let us know if that resolves your issue

 

[it@agel]

Hello it@agel

You actually need to go up to 8.9.3.66 to be on the supported firmware version for SP1. Try upgrading and let us know if that resolves your issue

Hello YiannisH_3CX,

I have tried updating a D305 to 8.9.3.66, which also had the same issue. The issue unfortunately remains after upgrading the firmware.

 

[YiannisH_3CX]

Where are you seeing this error? Is it on the phones or on the management console of the PBX? Also are the phones local or remote?
Are you using the default templates?

 

[it@agel]

Where are you seeing this error? Is it on the phones or on the management console of the PBX? Also are the phones local or remote?
Are you using the default templates?

Sorry for not providing not more information.
I am seeing this in the logfile of the phone. I received complaints of people with deskphones that after the upgrade, the phone becomes very slow and unresponsive, even missing calls. Then I went checking out the phone logs and seeing this spamming for each minute:

Aug 24 11:45:34.752 [NOTICE] SIP: process auth: Match challenge for user=111, realm=3CXPhoneSystem

Phones are all local, same subnet, default templates.

 

[YiannisH_3CX]

the logs you are seeing are actually the registration of the phone to the PBX. The messages should be approximately 60 seconds apart.
Just checked on a Snom in the office and seeing the same messages that match the registration attempts of the phone that i captured using wireshark. So the issue you are experiencing is not related to these logs as these are common to all Snom phones.
Have you tried resetting a phone and re-provisioning? Are the phones still getting slow after a reset?