-6722 error when mirroring to Apple TV.
My AirBook is less than a year old with new Apple TVs . But I get an error -6722 when I try to connect to one of my Apple TVs.
I can see the devices, ie living room and bedroom but the -6722 appears after 20 seconds or so.
I didnt upgrade for this feature but it would be nice to use it.
Any ideas?
Regards
Derek
iMac, Mac OS X (10.6.8)