WireGuard for Windows fails to enable firewall rules after update to v0.2.1

[Jason A. Donenfeld]

This part of your log:

2020-11-17 08:19:14.469253: [MGR] Migrated configuration from
‘C:\WINDOWS\system32\config\systemprofile\AppData\Local\WireGuard\Configurations\SCJ.conf.dpapi’
to ‘C:\Program Files\WireGuard\Data\Configurations\SCJ.conf.dpapi’
2020-11-17 08:19:14.480225: [MGR] Migrated service command line
arguments for ‘WireGuardTunnel$SCJ’
2020-11-17 08:19:14.485210: [MGR] Starting UI process for user
‘[REDACTED_PERSON_A]@SCJ’ for session 1
2020-11-17 08:19:14.509146: [TUN] Unable to load configuration from
path: open C:\WINDOWS\system32\config\systemprofile\AppData\Local\WireGuard\Configurations\SCJ.conf.dpapi:
The system cannot find the path specified.
2020-11-17 08:19:14.509146: [TUN] Shutting down

Seems like it's do to a race in the migration, which this commit should fix:
https://git.zx2c4.com/wireguard-windows/commit/?id=6e4e535e0c1108bbd5a3f15e273e13868f4ece20

But this part of your log:

2020-11-17 08:19:29.582424: [TUN] [SCJ] Enabling firewall rules
2020-11-17 08:19:29.746988: [TUN] [SCJ] Unable to enable firewall
rules: Firewall error at
golang.zx2c4.com/wireguard/windows/tunnel/firewall/helpers.go:100: The
specified group does not exist.
2020-11-17 08:19:29.767930: [TUN] [SCJ] Shutting down

Is extremely puzzling. I'm wondering what led to this and how you
eventually appeared to fix it. Did it go away on its own without user
intervention? Did you have to manually start/stop the tunnel a few
times?

Jason