[Linphone-users] Android 4.0.0 Client Registration Fails

[Jason]

Greetings!  I am running Linphone Android 4.0.0 on an Android 8.1.0
Google Pixel XL.  I am connecting to my own FreePBX 14 server at
192.168.2.30 via OpenVPN.  This previously worked fine, however
recently I am getting an Unauthorized error, and my Android client
fails to register against the PBX.  If I delete the account and re-add
it, it just sites on a spinning orange circle until I kill the app,
then goes back to Unauthorized.

I can use another client from the App Store, such as CSipSimple, with
the same settings and it registers without issue, so this doesn't
appear to be a network issue, but it something that affects the
Linphone client only.

Even with SIP debug logging turned on the PBX, it doesn't look like
the registration packets are getting to the PBX.  I don't see anything
in the logs or live looking at the packets when I attempt to register.
I've included the debug logs from the device.  Debug Logs:
https://www.linphone.org:444//tmp/5b31518823c93_33c62bb0b11a5c666af8.gz

>From a quick look, it looks similar to this issue:
https://github.com/BelledonneCommunications/linphone-android/issues/216

I downgraded the Linphone Client back to v3.3.1 from here:
https://www.linphone.org/releases/android/.  This worked around the
issue and I was able to register properly.

Could you please let me know if this is a known bug with the 4.0.0
client, and if a fix is in the works?

Thanks,
Jason Paul