![]() I chose 25 after inspecting the Wifi channel usage using wifi explorer app and noticing that all of my 2.4 ghz traffic was on wifi channels 1-7 (I have an Eero Pro 6 mesh network which doesn't allow changing the wifi channes, but usually uses channel 1 for 2.4Ghz, the mesh network consists of 5 access points).To reset the bulbs I re-pair to Hue hub using the serial number and then delete them from the Hue hub to put them back into a pairing state, so a lot of work! I did this by making a backup in ZHA, modifying the json and migrating the coordinator to the backup, after restarting ZHA it shows the updated channel and I then manually reset all of the devices and re-pair.changing to channel 20 (this is what the Hue hub was previously running on).from a similar location to where the happy hue hub was to one more inline with the usual recommendations (higher up, away from sources of EMF, more central to the network, fewer solid walls between the coordinator and the network), but the position is still not optimum.So far I've tried the following things to fix the issue: HA OS is running on a Pi4 and is up to date. The dongle is on a 2m USB2 shielded cable about 1m from floor height and connected to the USB2 port. The SML003 devices have no similar issues, I don't think I've noticed any times when an SML003 becomes unavailable, even when used in the same room as unstable SML001 devices. I'm noticing it affect all SML001 devices, irrespective of location in the house. ![]() The device will then be stuck in that state until I press the repair button and re-add the device in ZHA. This often coincides with a change in motion state. Since moving to ZHA I'm dealing with (almost?) all SML001 devices disconnecting and becoming unavailabe. The house is 300m2 across 2 floors with brick & concrete construction (typical European construction). I have 38 hue bulbs / lightstrips / playbars on this system with 14 SML001 motion sensors, 6 SML003 motion sensors and a handful of smart buttons. In that time I didn't know about or attempt to address issues with Zigbee interference and had the hub was in a very sub-optimal location. ![]() Previously the Hue hub based system worked great - I've had the system running for multiple years, and for 1 year in my current house, I had no known issues with devices dropping off the network. This has been split off from #86231 (comment) at the request of 2 weeks ago I switched from a Philips Hue hub based setup (using the integration) to a ZHA one using the Sonoff-E dongle. Note! Please keep this issue on topic and concerning only Hue SML001 sensors becoming unavailable in ZHA.
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