I have a Pi 4 running home assistant and it is connect to my router via ethernet. It has been running fine for several years. Today I noticed that I could not access it (although z-wave commands are still functioning). I checked and my router shows that it is offline.
I have hard rebooted the Pi 4 (unplugged and then plugged back in)
I have rebooted my router.
I have tried a different ethernet port.
Home Assistant is running. I can verify this because my automations are functioning.
I was able to access home assistant a few hours ago, but now it won’t connect to my router or my router won’t connect to it (it just shows offline in the router interface).