Thanks for all of the help. I was able to change the zigbee channel but it did require re-pairing all of the devices. I do use an Android app that tells me where all of the WiFi channels are in my environment so I choose the new channels wisely, although there are no great options.
The bad news is nothing really helped. Even after trying both of the least congested zigbee channels (15, 25), the Osram Lightify lights are still unreliable. Any single bulb seems to work well, but if you turn them off in a group greater than three, one or more will fail to react. Based on some of the ST threads this may be due to the limited buffer size of the bulbs. Packets just start getting dropped.
The frustrating thing is that these bulbs did work well on ST. Although, I get the feeling that some code specific to these bulbs and their limitations was required in St. Any ideas?
I have two Hubitats. One is in a remote location with an almost empty RF spectrum and consequently a very weak Internet connection via a cell signal. It is a largely Zwave Plus installation and Hubitat works great.
The troubling installation is in an urban area and is ZigBee. It’s been a real pain. I really don’t want to run ST in one place but Hubitat in the other. Plus I’ve really gotten spoiled on the local control and flexibility of Hubitat.