Wireguard Android app stops working on Chrome OS after suspend

Wireguard Android app stops working on Chrome OS after suspend

[Reuben Lifshay]

I've had the Wireguard Android app on my chromebook for awhile and
it's seemed to work just fine. Recently I've started using it more
though, and I discovered that if I closed the lid of my chromebook for
a few minutes or if I let it go to sleep that I can no longer get any
of my tunnels to work. Toggling the tunnels and/or wifi does not fix
it, nor does force stopping the wireguard app. I have to do a full
reboot to get things working correctly again.

I did some debugging and discovered that the wireguard packets were
still being sent to and received by the remote server, but there was
something incorrect about them because they never appeared on the
corresponding wireguard interface on the server. I didn't see anything
that stood out in the app debug log either. After some searching I
found a reddit post where someone discovered that if they downgraded
to version 1.0.20210506 that the issue went away. I didn't try that
myself yet because I don't really want to enable dev mode to allow
sideloading apps right now.

I can enable debug mode for wireguard on one of my servers to get more
info if it would be helpful, but have yet to do so.

Here's a link to the reddit post:
https://www.reddit.com/r/chromeos/comments/q0lbnl/network_troubles_after_version_93_update/

Reuben