Sylvania Osram light connectivity issue

I have six Sylvania 73742 lights, and every few weeks they become Unavailable in the app. I know this happens bc they do a cycle of different colors of white when you then them on; of course, this is quite annoying. Any thoughts?

Beef up your Zigbee mesh, add a few repeaters. And wouldn’t hurt to check for possible interference.

If they all become unavailable at the same time every time, they may be trying to do a firmware update. Go into your account in the IDE and turn off the option for over the air (OTA) zigbee updates and see if that helps.