Hi,
did zypper dup yesterday, after reboot Wireguard tunnels running for years not comming back anymore:
systemctl status wg-quick@wg0
× wg-quick@wg0.service - WireGuard via wg-quick(8) for wg0
Loaded: loaded (/usr/lib/systemd/system/wg-quick@.service; enabled; preset: disabled)
Active: failed (Result: exit-code) since Sun 2026-05-17 15:01:33 CEST; 28min ago
Invocation: b4a2103c135e4e82becc213befd6e30b
Docs: man:wg-quick(8)
man:wg(8)
https://www.wireguard.com/
https://www.wireguard.com/quickstart/
https://git.zx2c4.com/wireguard-tools/about/src/man/wg-quick.8
https://git.zx2c4.com/wireguard-tools/about/src/man/wg.8
Process: 1948 ExecStart=/usr/bin/wg-quick up wg0 (code=exited, status=126)
Main PID: 1948 (code=exited, status=126)
CPU: 26ms
May 17 15:01:33 dellscsi80722 systemd[1]: Starting WireGuard via wg-quick(8) for wg0...
May 17 15:01:33 dellscsi80722 wg-quick[1948]: [#] ip link add dev wg0 type wireguard
May 17 15:01:33 dellscsi80722 wg-quick[1978]: /usr/bin/wg-quick: line 32: /usr/bin/ip: Permission denied
May 17 15:01:33 dellscsi80722 wg-quick[1980]: Unable to access interface: No such device
May 17 15:01:33 dellscsi80722 wg-quick[1948]: [#] ip link delete dev wg0
May 17 15:01:33 dellscsi80722 wg-quick[1992]: /usr/bin/wg-quick: line 32: /usr/bin/ip: Permission denied
May 17 15:01:33 dellscsi80722 systemd[1]: wg-quick@wg0.service: Main process exited, code=exited, status=126/n/a
May 17 15:01:33 dellscsi80722 systemd[1]: wg-quick@wg0.service: Failed with result 'exit-code'.
May 17 15:01:33 dellscsi80722 systemd[1]: Failed to start WireGuard via wg-quick(8) for wg0.
and
# wg-quick up wg0
[#] ip link add dev wg0 type wireguard
/usr/bin/wg-quick: line 32: /usr/bin/ip: Permission denied
Unable to access interface: No such device
[#] ip link delete dev wg0
/usr/bin/wg-quick: line 32: /usr/bin/ip: Permission denied
and
journalctl -xeu wg-quick@wg0.service
May 17 15:01:33 dellscsi80722 systemd[1]: Starting WireGuard via wg-quick(8) for wg0...
░░ Subject: A start job for unit wg-quick@wg0.service has begun execution
░░ Defined-By: systemd
░░ Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
░░
░░ A start job for unit wg-quick@wg0.service has begun execution.
░░
░░ The job identifier is 321.
May 17 15:01:33 dellscsi80722 wg-quick[1948]: [#] ip link add dev wg0 type wireguard
May 17 15:01:33 dellscsi80722 wg-quick[1978]: /usr/bin/wg-quick: line 32: /usr/bin/ip: Permission denied
May 17 15:01:33 dellscsi80722 wg-quick[1980]: Unable to access interface: No such device
May 17 15:01:33 dellscsi80722 wg-quick[1948]: [#] ip link delete dev wg0
May 17 15:01:33 dellscsi80722 wg-quick[1992]: /usr/bin/wg-quick: line 32: /usr/bin/ip: Permission denied
May 17 15:01:33 dellscsi80722 systemd[1]: wg-quick@wg0.service: Main process exited, code=exited, status=126/n/a
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
░░
░░ An ExecStart= process belonging to unit wg-quick@wg0.service has exited.
░░
░░ The process' exit code is 'exited' and its exit status is 126.
May 17 15:01:33 dellscsi80722 systemd[1]: wg-quick@wg0.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
░░
░░ The unit wg-quick@wg0.service has entered the 'failed' state with result 'exit-code'.
May 17 15:01:33 dellscsi80722 systemd[1]: Failed to start WireGuard via wg-quick(8) for wg0.
░░ Subject: A start job for unit wg-quick@wg0.service has failed
░░ Defined-By: systemd
░░ Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
░░
░░ A start job for unit wg-quick@wg0.service has finished with a failure.
░░
░░ The job identifier is 321 and the job result is failed.
Moreover, Samba won’t start, with some nmb error in log, disabled nmb service, reboot brought back samba, but fails after some 80 MB copying of files and won’t come back on restart:
# systemctl stop smb
# systemctl start smb
hangs for ever.
Any ideas how to proceed? Did a zypper dup some hour ago or so, reboot didn’t help.