i have this problem, audio but not video from Airply Mirroring from an OSX device. My IOS devices work fine. My Mini i'm trying to mirro from is hard wired into a Linksys E2000 also, via a Netgear switch.
reboots on my Router did nothing. I'm really at a loss with this.. help, anyone?
I must say that i had the same trouble.....a house FULL of Apple products and NOTHING...wouldn't recognise any of them......Well i followed the advice of a few and simply RESET my router and now EVERYTHING works fine. Thanks :-)