After a lot of tries, first through zigbee2mqtt over a slzb06 coordinator… did not pair/ connect: it left the network because …
Then through ZHA over a sonoff coordinator it got connected. The correct device was recognised and the correct entities are available.
So i made 2 simple automations to switch on/off a lamp.
But when i push the buttons, nothing happens 
That generation of IKEA buttons are unfortunately just plain unreliable in my experience. I’ve thrown away several of them after they just stopped working, began draining batteries quickly, or other weird behavior. It’s a shame because they are small and can be fitted over standard wall switches without looking too terrible, but overall you are better off upgrading to the newer Rodret/Somrig/Styrbar models.
haha i was already a bit afraid that would be the conclusion.
I have some nice aqara opple switches that match the “normal” lightswitches - I used the IKEA as random to stick to my nightstand or on the table to activate scenes.
think i’ll bin them then - i never heard of the three models you mention but have not been at IKEA for a while…
Hi!
Does the newer models connect with our Zigbee coordinator or do they need their gateway?
Edit: little update, I have a Type1812 button (Ikea Tradfri) and I found that the reset to be done, after I changed the battery, is 4 quick clicks of the main button and then the red light in front start to blink. Then it should be reconnected to the Zigbee net going to the add new element.
Hope this helps! Best! M.
Should work fine with any Zigbee dongle supported by HASS. I have lots of IKEA Zigbee gear connected through a SkyConnect on a Pi running the ZHA integration on HAOS.
Me too, the difference with me is the coordinator that it is a RaspBee on a Rpi 3.
BTW, I found some information on Reddit and updated my previous post, successfully paired again.
I have 15 of these. The E1743 model.
I cannot confirm your statement.
They all work great.
They worked great on Deconz. And so far no issue on Zigbee2MQTT.
Maybe you have a dodgy router that the E1743 does not play well with
