I have had my Click for a few years. I have 2 paired to zigbee2mqtt. For some reason, yesterday both quit working. If I bring up a sniffer (ZBOSS Sniffer), I don't see any going out. I tried batteries.
About a month ago I did switch to channel 15 from 11, but they paired and worked. In fact, I was having reliability issues on 11, and then switching to 15 made it rock solid.
I don't see how to factory reset. Is that possible? If so how?