Commercial Electric can lights going off line

Hello, I installed the Commercial Electric downlights back in 2016. Initially they worked well with the Smart Things Hub. Now they continue to go off line. I do a reset then rescan to add them back. Has anyone else experienced this issue? I moved the hub closer however it had effect. Is there a fix? Thanks!

try using them in a location that you infrequently use the switch. i had 3 installed in a closet with a motion sensor that never lost connection. at the same time i had 1 over the sink with only a dumb switch that would lose conn all the time. now i have all 4 on a motion sensor again and they never lose connection.