[BUG] - reconnect after network change or standby takes about 2minutes

[egabosh]

Describe the bug
The reconnect takes around 2 minutes each time the network is changed or the smartphone comes out of sleep mode (display off).

Smartphone (please complete the following information):

• Device: Fairphone 4 (FP4)
• Android Version: 13 / LineageOS 20
• App Version: 3.5.4 (F-Droid)
• Backend: 4.19.306

To Reproduce
Set up Wireguard client.
I have tried various ping and auto-tunnel settings. The only thing that helps faster is to deactivate and reactivate the connection in the main window. If the star in dte main window is yellow it takes in any case a longer time until it is reconnecting.
The app has allowed background data and the battery settings are unrestricted

Expected behavior
Fast detection of whether the network is available and immediate reconnect if not.

If this is not a bug what are the optimal ping interval, Ping restart cooldown,... settings for a fast reconnect.

[egabosh]

Ah, looks like some additional android settings help:
Settings -> Network and Internet -> VPN -> WG Tunnel -> Continuously active VPN: On.
I'll keep an eye for some days on whether the VPN remains “stable” now.
Could not find this in the documentation. Maybe it should be added?
https://zaneschepke.com/wgtunnel-docs/overview.html

[dvalter]

Looks like a new regression in 3.5.3 or 3.5.4, downgrading to 3.5.2 fixes the issue for me

[egabosh]

Looks like a new regression in 3.5.3 or 3.5.4, downgrading to 3.5.2 fixes the issue for me

Thanks. Just installed 3.5.2 from F-Droid. I will test here too.

[egabosh]

Ah, looks like some additional android settings help: Settings -> Network and Internet -> VPN -> WG Tunnel -> Continuously active VPN: On. I'll keep an eye for some days on whether the VPN remains “stable” now. Could not find this in the documentation. Maybe it should be added? https://zaneschepke.com/wgtunnel-docs/overview.html

Unfortunately only seems to have helped to a limited extent.

[egabosh]

Looks like a new regression in 3.5.3 or 3.5.4, downgrading to 3.5.2 fixes the issue for me

Thanks. Just installed 3.5.2 from F-Droid. I will test here too.

Hmm... 3.5.2 seems to crash if I switch from mobile data to WLAN.

[zaneschepke]

Hello! I have a LineageOS test device. I'll look into this one.

[egabosh]

Hello! I have a LineageOS test device. I'll look into this one.

Thank you! I don't use the Kernel module. May this be needed?
Now testing 3.6 (from F-Droid).

[zaneschepke]

3.6.1 is now out. Any improvement on this issue?

[egabosh]

installed and trying it...

[egabosh]

Update to 3.6.1 didn't help.

[zaneschepke]

When you say reconnection, is this talking about auto tunnel switching the tunnel on or is it talking about the tunnel connectivity itself working and I guess I don't understand how phone sleep factors in. Can someone provide clear steps for me to try to reproduce this issue on my LineageOS device? Thanks!

[egabosh]

Here my exact settings. Hope it helps.

[zaneschepke]

There are changes in the latest nightly version coming out tonight that I think should help with this one.

[egabosh]

Are the changes also in 3.6.2?
As soon as they are available in F-Droid I will try the new version.
Many thanks!

[zaneschepke]

The changes are in 3.6.2, but that version has a pretty nasty bug that can cause crashes in certain situations. 3.6.3 would be the right version to test.

[zaneschepke]

I'm pretty confident this one is fixed by 3.6.3. If you still have the issue when 3.6.3 goes live on F-Droid, just drop a comment here and I'll reopen the issue. Thanks!

[egabosh]

Moin, after Update to 3.6.3 wgtunnel isn't starting anymore:

wgtunnel-crash.mp4

[egabosh]

3.6.4 works again. :-) Now testing the reconnect behaviour.

[egabosh]

problem continues to occur, even if it feels less frequent.

Have to switch it off and on with the marked switch, then it works fine again.

[zaneschepke]

Sorry, which problem specifically is still present?

[egabosh]

The initial problem: "Reconnect after network change or standby takes about 2minutes"

[zaneschepke]

Thanks for the details. Would you be willing to try the latest nightly to see if it helps? I made some more improvements to auto tunneling that should help with this.

[egabosh]

I'm on vacation with my family, so I probably won't be able to test it again until 2025.

[zaneschepke]

I'm on vacation with my family, so I probably won't be able to test it again until 2025.

No worries! Enjoy the time with your family!