Cannot pair several zigbee devices with new C8

[anthony4]

+1 Having Zigbee issues with stability of radio and pairing of new devices.

C8 Issues with Adding and Controlling Sengled Devices

TLDR: New to C8 Sengled Bulbs not joining and Zigbee Radio keeps going offline until I reboot the hub. Sengled bulbs joined to c7 and migrated to C8 function fine. Same make/model. I haven't had to pair anything since migrating from my c7, but I have 3 Sengled Element Color Plus Bulbs that I have just tried to pair. I was able to get the three of them to pair when I switched channels from 20 to 26, but they were unresponsive after pairing. I was also unable to get them to repair after remo…