My Hubitat went down in the last day - I've tried power cycling, but I'm still not able to load the management interface or have any of the zigbee devices it owns respond.
I've attempted connecting to alternate network ports, power cycled the unit multiple times. The green LED is lit, but I can't get access to it and nothing it was controlling will respond..
Any thoughts on what might be going on here? Home assistant on RPi3 on same switch working fine. Lutran bridge on same switch/network working fine, but my Hubita- the key to my zigbee mesh is just not responding to an thing..
How are you trying to access the UI? Has the hub been given a different IP address from the one you are expecting? That's a frequent reason people find out why they couldn't access their hubs after powerdown. You could try "Find Hubs" on your mobile app or check your router's client table
A couple other things to try. Can you ping the hub's IP? Have you tried going to the diagnostic page on port 8081? If neither of those work and @Inge_Jones advice doesn't resolve the issue, you can reset the hub's network connection:
I assume that you power cycled by pulling the plug - this can lead to a corrupt database.
Thy accessing the hub at http://hubitat.local. You will likely need to do a soft reset and restore your latest backup to correct the corrupted database, assuming that this is part of the cause.
Thank you everyone.. This morning, when I got up everything was restored. Well mostly.
I FINALLY tracked this down to a four port gigabit switch with one port VERY BUSY.. Not "giga-busy", just a bit over 150Mbs in a steady stream, but that was enough to stop responses from devices plugged into other ports on the switch.
Moral? Don't buy CHEAP ethernet switches, they can't come CLOSE to full bandwidth without blocking, it seems.
I want to thank everyone for their kind responses and time. I actually learned a few things.
I have take time to lock the formerly dynamic DHCP allocated IP address and create a local static DNS entry for "future fun" of this sort.
