Hi,
We recently had strong thunderstorms and power outage recently. After the power was back, the Hubitat hub is not accessible. The hub is stuck with solid Blue light.
How do I restore/recover the hub?
Ajay
youripaddress:8081
try that first
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Are you sure the hub is really not accessible? If you didn't reserve a DHCP address for it in your router, it's possible that after a power outage, its IP address may have changed. The https://portal.hubitat.com (edited in 2025 with new link...) http://findmyhub.hubitat.com page will try to discover any Hubitat hubs on your network. Trying there to see if you can find it may help.
If you do find it (or otherwise think you know the current IP address, and the old one is still a good guess if all else fails), definitely try the above--the diagnostic tool--if you can't get to the regular IP address before you do anything that might hurt, like a forceful power remove (though I suppose that might have already happened 
).
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YESSS - THAT Exactly.
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Also just a note, since I see you have had hubitat for a while, a blue light on a C4 (removable Zstick) hub means it is working correctly. Blue light on a C5 means it is "booting" (if blue for a long time, it could mean there is a problem).
Another good tool to have is Advance IP Scanner. It will scan your entire subnet and report back the devices it finds. If you assigned your hub a static IP address inside your routers DHCP scope, without excluding it/making a reservation, it could have assigned that IP to another device, and now you have a conflict.
My C4 is 10.13.9.11 and the C5 is 10.13.9.12. You can see below how Advance IP scanner finds and lists device (Mac address is your friend here)
If you find another device using your hubs IP address, that could also be an issue.
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While technically this is true I had a C4 recently that randomly was not accessible one day and would always power on with a solid blue light. Long story support deemed it a bad hub and I purchased a replacement as it was out of warranty.
I would also imagine since the OP stated they had a power outage recently and it stopped working after that, it is not a configuration issue. I suspect it is a courrpt database or hardware issue.
See if you can get to http://hubip:8081 and perform a soft reset, then just restore from backup.
