Lost route to a subnet after upgrade to 24.7.1

[Froggersson]

Coming from 24.1.10_8.

I'm having two offices, the first one is 10.0.0.0/16 and the other one is 10.1.0.0/16. Until I upgraded to the newest version I've been able to connect 10.1 from 10.0. After upgrade it looks like the route to 10.1 is lost. As it is using an independent fiber the Internet works, but I'm not able to connect internally to that network anymore. Before the upgrade networks were co-operating fine.

On the other end there is an Edgerouter X.

Any suggestions what to check?

[Patrick M. Hausen]

I assume you are using some kind of VPN to establish the connection? Which one? Anything in the log files?

[Froggersson]

It was on a Wireguard connection. Looks like other Wireguard connections survived the upgrade. Have to visit that office.

[Froggersson]

So this is quite weird. I reverted back to 24.7 kernel from another thread and it fixed the problem.