Osram/Sylvania Lightify (it works)

[Sticks18 (Scott G)]

Sounds like the non-tunable bulbs didn’t get the same firmware fix.

Maybe try turning off the insecure re-join feature of your hub and see if it still happens.

Disable ZigBee Insecure Rejoin

As promised in a post 2 weeks ago, the latest firmware update for V2 Hubs has added a new feature associated with ZigBee insecure rejoin that we’ve talked about before. Specifically, we added the option for you to turn on and off the ability for devices to use the insecure rejoin method. What does this mean? There’s a more detailed technical description available, but in short, the ZigBee HA 1.2 specification was designed with a convenience feature known as insecure rejoin. Meant to ensure usability, it lets devices that are unable to reconnect to the network securely due to a change in the network to request that the network key be resent using the well known Trust Center Link Key. It came to our attention that a security researcher was able to misuse this feature to cause unauthorized …