Yealink Forums

Full Version: V83 and openvpn problem
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
I am running Yealink T23G and T42S phones connecting to my server via OpenVPN.
Everything works well with V82 but V83 has introduced an issue.

When on a call I have brief 2 seconds audio dropouts every 48 minutes.

This is what an excerpt from syslog on the phone whenever the audiodrop is happening:

Apparently there is a TSL soft reset happening.
This is only happening when live on a call, not when the phone is idle and causes the audio to drop on all phones I have tried it on. Never happens on V82.

29>Aug 25 13:40:44 openvpn[1352]: TLS: soft reset sec=-2861 bytes=67278407/67108864 pkts=284686/0
<29>Aug 25 13:40:44 openvpn[1352]: VERIFY OK: depth=1, CN=vpn-ca
<29>Aug 25 13:40:44 openvpn[1352]: VERIFY KU OK
<29>Aug 25 13:40:44 openvpn[1352]: Validating certificate extended key usage
<29>Aug 25 13:40:44 openvpn[1352]: ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication
<29>Aug 25 13:40:44 openvpn[1352]: VERIFY EKU OK
<29>Aug 25 13:40:44 openvpn[1352]: VERIFY OK: depth=0, CN=vpnserver
Confirming that this V83 firmware is a problem on a T41P phone, too.

Upgrade to V83, VPN does not connect.

Downgrade to V82, VPN works again.

SAME PROBLEM all the way through latest .50 firmware.

Downgrade from V83 .50 firmware back to V82, and VPN works again.

YEALINK, YOU NEED TO FIX THIS IMMEDIATELY. THIS IS A HUGE FAILURE AND IS IMPACTING CLIENT PHONES.
We are having the same problem. I have tested it on T41 and T42. Any update on this would be apreciated.
(11-08-2018 09:45 PM)p2xt Wrote: [ -> ]We are having the same problem. I have tested it on T41 and T42. Any update on this would be apreciated.

Try upgrading to V84, I have successfully tested OpenVPN on a T41S running V84 with no drops or loss of connectivity for 3 days so pretty sure the issue is fixed.
Almost a year later and this is STILL an issue. Trying to get a remote phone to work with VPN for a client.

YEALINK, why have you not fixed this for customers?

This is for a T41P, NOT a T41S, so there is no newer firmware to fix this issue.

What gives?

Why have you not addressed this problem?
(05-10-2019 07:13 PM)caldwell Wrote: [ -> ]This is for a T41P, NOT a T41S, so there is no newer firmware to fix this issue.

Why not just roll back to V82 that works properly? While not officially dropped T41P has basically been directly replaced by T41S so chances of getting any further updates for it are pretty slim unless you have thousands deployed and are trying to make a business case to Yealink...
Or ... Yealink could take support of their products seriously.

Yeah, that's an idea.

This has been a longstanding issue with Yealink and bugs in my experience, and VPN is just one of the issues I've encountered which just never got fixed.

Really, how long would it take them to FIX this problem and roll out a new firmware?
Reference URL's