Appletv does not find iTunes library
Trying to help a friend to whom i suggested buying an appletv and can absolutely not connect to the iTunes library
iMac El Capitan, Apple TV 4k. Tried everything. Appleid seems to be OK and working on imac+itunes. Apple id put in correctly at Appletv (same appleid for imac and appletv). Apple tv connects ok with ethernet or wifi . Tried Restart and Reset. Homesharing is on. Appletv connected directly on the router (not a switch). I am short of ideas... Can someone help?
Apple TV 4K, tvOS 14