John Savage

@AceRimmer I contacted the network provider and found out they had migrated me to a CGNAT infrastructure. He was kind enough to put me back to my old setup - and that was it! Sorry for the trouble, and again, thank you very much for taking the time. God bless you.

@AceRimmer thank you for your attention already. I've restarted the router and now the shim-br0 mac address is not showing up in the router's topology screen - which seems like a good thing, I guess. Indeed I am. Sorry for the confusion. I have docker containers and VMs I want to access remotely. I'm considering using a wg server in a RPi instead - even though I wouldn't like to maintain a second device.

Experiencing the same issue here. I'm facing an issue where my wireguard server (plugin) is not working, and I guess that the "two devices with the same IP" may be the cause. If anyone finds a solution, please share.

I ended up in the same spot and you just saved my day. Thank you for sharing the solution.