Migrate from RPI to Dell optiflex

Hi! Currently movin HA from RPI to Dell. Loaded recent snapshot on login and now I can’t reach home assistant . Thinking it must be because I hade duck dns with secure connection on the RPI. Advice how to do this the easiest way? I can ping the computer but nothing more

What are you seeing when you navigate to https://ipofoptiplex:8123 ?

Did you adjust your port forwarding rules to the IP of the new optiplex box?

Ah, of course. The port forward. Stupid me! Thanks