Help . channel change.. dead network

I tried changing the channel on my conbee3 (which operates via ZHA) from channel 11 to channel 25. Now everything is dead; I tried reverting to channel 11, but I can’t get the network back up and running. Is there anything that can be done? i have rebooted my machine (power off , and turn back on again.) 125 devices and it either pair anything

In afraid you have to ask in the ZHA channels. The stick does what the software says. Your best bet is to change back to 11. But other then that I cant be of any help.