Detected dead peer!
I have noticed OpenConnect disconnects quite rapidly when idle, compared to openfortivpn or FortiClient. I will try to measure exactly how rapidly OpenConnect disconnects.openconnect.log
I couldn't help but notice that message when connecting:
Idle timeout is 25 minutes.
When disconnecting, the relevant message are:
Session authentication will expire at Sun Aug 15 13:04:11 2021
Detected dead peer!
Edited by Dimitri Papadopoulos Orfanos