Hi, 

I have 3 these dimmers and they started to jam daily a while ago. This is not lost wifi issue but hardware just jam and light remains on. I need to push restart button to get it back to business. Unifi shows that wifi connection is ok, if i click reconnect, its reconnect normally but dimmer remains offiline and not react for anything not even switch button pushing. This is not U7 issue since dimmers are connected to U6. They have been worked properly long time and all 3 started to act same way same time. 

Any recomendations?

Thx

Mika