I am trying to find a solution to control my zigbee devices next door.
I cannot use my raspberry directly because it is to far away.
Is there any reliable fast zigbee controller (ZHA) you could recommend me?
I tried the old Sonoff Zigbee bridge with Tasmota, but it is a pain
Most mains powered zigbee devices like bulbs or smart plugs also act as routers, so as @w35l3y says, just add one of those nearer ‘next door’ and the stuff on the other side might well then connect.