VPN tunnel closes going into doze mode

[nphalem]

Describe the Bug

After some time the VPN connection stops and never restores.

Click to view logs

2026-01-30 12:10:38.381 [INFO] PangolinGo: [Android] [PowerState] Device ENTERED Doze mode
2026-01-30 12:10:38.383 [INFO] PangolinGo: Setting power mode to: low
2026-01-30 12:10:38.383 [INFO] PangolinGo: Switching to low power mode
2026-01-30 12:10:38.383 [INFO] PangolinGo: Switched to low power mode
2026-01-30 12:10:38.383 [INFO] PangolinGo: Power mode set to: low
2026-01-30 12:13:31.456 [INFO] PangolinGo: [Android] [PowerState] Device EXITED Doze mode
2026-01-30 12:13:31.457 [INFO] PangolinGo: Setting power mode to: normal
2026-01-30 12:13:31.457 [INFO] PangolinGo: Wake-up requested, starting 0s debounce timer
2026-01-30 12:13:31.457 [INFO] PangolinGo: Power mode set to: normal
2026-01-30 12:13:31.457 [INFO] PangolinGo: Debounce complete, switching to normal power mode
2026-01-30 12:13:31.457 [INFO] PangolinGo: Reconnecting websocket for normal power mode
2026-01-30 12:13:31.457 [INFO] PangolinGo: Switched to normal power mode
2026-01-30 12:13:34.612 [DEBUG] PangolinGo: Stopping tunnel
2026-01-30 12:13:34.612 [INFO] PangolinGo: Stopping tunnel process
2026-01-30 12:13:34.612 [DEBUG] PangolinGo: Cancelling tunnel context
2026-01-30 12:13:34.612 [DEBUG] PangolinGo: Waiting for tunnel goroutine to finish
2026-01-30 12:13:34.612 [INFO] PangolinGo: Tunnel process context cancelled, cleaning up

Environment

• OS Type & Version: GrapheneOS Android 16
• Pangolin Version: 1.15.1
• Gerbil Version: 1.3.0
• Traefik Version: v3.6
• Newt Version: 1.9.0
• Client Version: 0.1.3

To Reproduce

Run in background while connected for some time.
Override DNS enabled.

Expected Behavior

VPN doesn't stop while in the background.

[nphalem]

Show Screenshot

These are permissions from WGTunnel and I can see ask to ignore battery optimizations permission which Pangolin is missing.

[nphalem]

This seems improved after either v0.1.4 or v0.1.5. VPN connection isn't lost after some time in the background. You can close the issue unless you feel there is something else do be done.

[oschwartz10612]

Yeah I actually think this was fixed in 0.1.5 by fosrl/olm#91

My device has been staying up through doze cycles so I am going to mark this complete!

Thanks!