I ran an update today on C8, I have a green LED but it is not accessible at all, no IP showing up in my router. I have rebooted, tried the soft reset but it never flashes the LED after 7 seconds. Find My Hub cannot find it either. I noticed this after it failed to run some rules this evening. I have tried google to see if I can find any solution, I am stuck now, and I really need to get this back up and running, until today it has been flawless.
Ok, looks like I made progress after pinging hubitat.local I found its IP address which is not what was reserved in the router, logged into to with MAC address, I have a corrupt database so doing a restore and soft reset
check the mac against your reservation (remember your mac for ethernet will be different than the mac for wifi on the hubitat)