@User thanks but same problem. It creates the interface and then the error and it does not delete the interface. It was a fresh (some days old) ubuntu 20.04 server installed with nm-quick v0.8.5 "RTNETLINK answers: Address already in use" maybe because the public IP is already in use? This sure happens if i have netmaker already connected trough docker and now trying to connect withrout docker. It sure has the same public ip.