@martinhjelmare Thanks, you post helped me in the right direction for a problem I had My hass also would not register a sensor and it's solved now.
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RE: !TSM:FPAR:FAIL - node not connecting to working GW
Hi there, I had a similar problem gw and sensor saw each other but the sensor did not get an id. Later I found that the controller hands out the id's, not the gateway. So when I connected the controller to the gw and configured it to use the gw arduino it worked. Not sure if this is your problem also but just in case