We have several customers using R4s and Zigbee Pros with issues. Basically you reboot the Zigbee and remote and they work again for a while. As best as we can tell, it seems to be something related to the remotes that go to sleep most of the time (but not always). We are running the latest firmware on both the remote and the Zigbee (I see the most recent Zigbee firmware is 2009 and attempted to address some of these issues).

The symptom as described to me is typically the user will be at the remote and it will freeze on the profile selection screen and the remote is non responsive until a reboot.

AMX tech support hasn't been much help, I'm just wondering if anybody else had run into this and figured out a solution. As you might imagine, customers aren't particularly happy when they spend zillions of $$ and have to deal with rebooting their stuff.