I am not sure if is a bug but i have discovered this today after i have rebooted the media convertor from my fiber connection.
Scenario : Wan via PPPoE and Wireguard client to NordVPN. I shutdown the media converter and start it again. No changes has been done in router. The link comes UP but the pppoe is not reconnected. Is keep trying to reconnect.Only fix is reboot. Possible firewall issues?
I found the issue. Is no firmware bug or somerhing else . I have installed : banIP some time ago configure it and i have let to Autodetect the Wan. But the software seems to be a bit idiotic and not delecting the wan to change the iptables allowed to add new pppoe IP address. I did some changes and now works without issue. Sorry for that. Topic can be closed or solved.