I have recently been having a lot of issues maintaining a connection with my proton vpn in gluetun. it keeps dropping and reconnecting due to failing periodic small health check. My internet connection is solid without connection issues, running a symmetrical 1gbit and the router (gl.inet brume 2) doesn’t register any dropouts in connection.
i have tried following the suggested troubleshooting in the docs, updating the vpn server list etc., but none of the suggestions seem to fix this issue. it has been going on for several months now. if i use mullvad it works perfectly without connection issues, but this is destroying my seed ratio due to no port forwarding.
[EDIT] it seems to be caused by radar/sonarr trying to reach my trackers. When I removed them from my docker-compose and left just the qbit and gluetun containers, it stopped failing and just kept running without dropping the connection. Configuring flaresolverr to be part of the docker-compose seems to have fixed the issues I was having.
I ran gluetun + proton for 4-5 years. v3.41 broke the integration completely and I could never get it working. Tried both wireguard and ovpn setups.
My best advice is pin to the 3.40 release or change providers. The maintainer hasn’t address the specific problem with proton in over a year. There was some discussion recently about improvements to the healthcheck endpoint, so he is working on the project. But it’s slow going and proton is the only provider I know about that is having consistent issues
3.40 still seems to have this issue, it doesn’t change anything in stability unfortunately.