After a power-loss, my Hue Dimmer Switch would suddenly not communicate with the Hue Bridge anymore. Nothing was changed (that I could see). A restart of the bridge made no change whatsoever. The bridge said it was "reachable":false
So; How to pair the Dimmer switch again – just with the Dimmer and the bridge.
- Delete the Dimmer switch from the bridge
- Put the dimmer switch into pairing modeInspiration from Philips
Press and hold the setup-button on the back of the Dimmer, until it starts blinking (In my case it started to blink green so slowly, it was hard to see that it blinked)
- Send an empty POST request to the “/sensors” resource in the CLIP debugger
- (not really needed) Send a GET request to the “/sensors/new” resource in the CLIP debugger
Output:
{
"9": {
"name": "Hue dimmer switch 1"
},
"lastscan": "active"
}
annd – we are back in business
Just saw another comment where a soft-reset made it “reachable” again
https://hueblog.com/2018/01/10/philips-hue-dimmer-switch-does-not-respond-soft-reset-is-a-solution/
You can easily trigger (a soft reset). Just press all four buttons on the dimmer switch at the same time. After about five seconds, release the buttons: the dimmer switch should flash red and green alternately.
After that, you should allow the dimmer switch to rest for 10 to 20 seconds before it is fully operational again and reacts to your desired entries. Practically speaking, the soft reset does not delete the previously set configuration, so no further settings are necessary.
First try made no difference. Second try, where I held the four buttons pressed longer worked. Halleluja