I got an internet outage today, when the internet came back my node started to show offline and qiuc missconfigured.
It is on windows machine, restarting the node did not help still offline.
TCP port 28967 is open
UDP port 28967 is open
Seems your internet did not work for a while - your node were not available from outside.
Please also check your DDNS address if you use it - its subscription and that it’s updated to your current public IP.