Sounds like zigbee interference. Maybe a neighbour got a new wifi access point or router which is conflicting with your zigbee signals.
Read this and download an app on your mobile to check which wifi channels are detected.
Sounds like zigbee interference. Maybe a neighbour got a new wifi access point or router which is conflicting with your zigbee signals.
Read this and download an app on your mobile to check which wifi channels are detected.