Delete the device from your C-8 hub (use the red REMOVE device button), then pair it again as a new device, using this pairing method. Make sure you follow all the steps.
Then, please post a screenshot of the logs that were recorded during the pairing process.
Also a screenshot of the State variables for this device.
As soon as the device pairs, go to the valve web page in HE and click on the Ping() button. Will the device respond?
If yes - will the device respond to Ping commands again after one or two minutes?
This test will show whether the device looses the connection shortly after joining the Zigbee network.
