Yealink OpenVPN problem on Firmware V83

Is anybody using Yealink phones on an OpenVPN connection?

I have noticed that a problem has been indroduced in Firmware V83.
When on a call I experience short 2 second audio dropouts every 48 minutes.
Apparently a tls soft reset is being performed.

I can perfectly reproduce the issue. It’s never happening when on V82, always on V83.

Has anybody else seen that?

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

Anybody seen OpenVPN issues on Yealink V83 firmware?

I have not but I have limited numbers of phones on V83 firmware due to a BLF issue upon restarting asterisk on V83.

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