Diese double switch issue

[erktrek]

Zigbee and WIFI interference

Zigbee and WIFI channels overlap. You can use these to pick the best Zigbee channel for your setup depending on what WIFI channels are in use around you. 2.4 GHz WIFI Channels [Wi-Fi Channels] 2.4 GHz Zigbee Channels [ZigBee Channels]

Also review your rules to make sure something is not firing based on an unexpected condition..