Title says it all. New Apple TV. When trying to access my iTunes library on my laptop via home sharing, loading a 4 min mp3 takes about 5 min. Trying to play a HD movie it just never starts (insanely slow buffering?). And when I tried doing Airplay mirroring from my rMBP it could not keep up at all, it was stuttering doing like 1 frame per minute with a 5 minute delay. Streaming from the internet to ATV works fine, pretty fast. My wifi router is Netgear WNDR3400v2 dual band n and I get around 25mbps on my laptop on http://speedtest.net. All my OS, iOS, and ATV OS are up to date. Is there a fix for this? Or should I just return the ATV and wait for the next one?