I have deCONZ Zigbee now and thinking of replace it with SONOFF ZigBee.
What has to be done in HA to get it working?
How do you run Zigbee, do you use Deconz with a Conbee? If so I believe you would need to re-pair all devices if you change it to ZHA or Z2M with a Sonoff. I did the migration some years back and if you remove the devices from Deconz while you have pairing enabled in Z2M the device goes straight into pairing mode without having to do a reset procedure. Not sure if that applies on all devices though.
Yes … I have ConBee II.
The reason why I think of switching is that the connection to sensors drops sometime and I have to reset the sensors … not reliable.
Maybe upgrading the deCONZ firmware helps … or is it another problem?
Do you have any recommendations?
Start by reading this guide, see if you have done all the steps. Usually drops are signs of a weak mesh, it would probably help you more to add some more routers than changing the coordinator and software. https://community.home-assistant.io/t/zigbee-network-optimization-a-how-to-guide-for-avoiding-radio-frequency-interference-adding-zigbee-router-devices-repeaters-extenders-to-get-a-stable-zigbee-network-mesh-with-best-possible-range-and-coverage-by-fully-utilizing-zigbee-mesh-networking/
If you are using deCONZ (or Zigbee2MQTT) as your Zigbee gateway application then it will be a two-step process (or three-steps if count firmware upgrade prerequicite) as after making sure your ConBee Zigbee Coordinator adapter first have latest firmware (before even beginning) then you need to migrate to the ZHA integration via radio migration (which does a partial backup + restore) and re-pair any/all battery-powered devices that did not automatically migrate. Once you are fully migrated to ZHA with your existing ConBee adapter then it is easy to do a radio migration from it to another adapter within ZHA which via its radio migation feature. See:
Note that migation from deCONZ procedure only helps migrate basic network settings, and you will lose all custom device names from deCONZ so you need to rename all devices manuellt after ZHA backup and restore. That is only needed when migrating from deCONZ (or Zigbee2MQTT) and not needed when migrating beteen different adapters within ZHA.
That is more likely to be a failure of the mesh than the coordinator.
I support getting off of Deconz for other reasons, but you might need to beef up your mesh even if you flip coordinator software… The Home Assistant Cookbook - Index