On the 23rd of December my ISP changed and with it came a new router ( Vodafone UK ).
Although I didn't think much of it, today it seems all of my devices have dropped off and I couldn't access my hub via the usual IP address.
Once figured out the new IP address, I logged into the hub where I found a pop up notification to indicate that my zigbee network is offline.
I also noticed that an option to upgrade the Hubitat was available, so I went ahead with it.
Unfortunately, no change there - Zigbee network is still showing as offline and none of the devices/automations work.
I am not sure if important, but although the router has changed - my hubitat remains connected to the network via a Deco S4 device
With the above in mind, I have a few questions please guys:
Why would the change in wifi/router affect zigbee devices? ( Some are flashed sonoff )
How is it possible for everything to continue working for a few days before collapsing?
And most importantly, how do I fix it please? Is there an easy way or do all devices need to be reconnected individually?
Yes but more costly as the devices will take awhile to switch over and some .may need to be re-paired. Don't remove any though they can pair in place and resume there slot.
Shut down your hub from the settings menu. Unplug power to hub (at wall not hub) for 30 mins then power back up and let sit for a few and see if the devices reconnect.
A quick update - I am all back up and running again.
To be honest, I didn't see the suggestion to shut down the hub in time and repaired all devices one by one - in all honesty I haven't got that many so it wasn't too bad after all.
The most problematic devices however were all wifi integration - Kasa bulbs, Sonoff light switches, Samsung tv's etc.
The new router must have assigned new IP addresses to them all ( I guess that's expected? ) so I had to pretty much remove them all, reinstall and update all automations.
I know someone will probably tell me that there would have been a much quicker way to get there, but I am happy either way.
It's early days, but I think the suggestion to change the channel to 25 made my automations a little quicker too, thanks!
You want to go into the new router and set a DHCP reservation for each and every wifi based iot device as well as hubitat. This way you'll know where everything is and more importantly hubitat will know where everything is because nothing can be changed when a lease runs out.
The router serves your DHCP not the deco's. If for some weird reason they are serving dhcp, I would encourage you to turn DHCP server off on those units and let the router handle it.
Ideally you'd want your ISP to supply you with a modem only and control your LAN (router etc.) completely separate from their equipment.
I mean, it is yours after all.
Then any ISP changes in the future won't cause any further disruptions.
then it might not be too much of a hassle to do the channel change on the HE hub.
still, shouldn't kill your ZigBee radio.
