Apple TV 3rd Gen Freezing/Buffering constantly

Hi,

I have a 3rd gen ATV which has never really given me any trouble, but for the last 6-8 weeks or so, it has been stalling when trying to load movies where it never used to have any problems at all. I have checked and rechecked my network and conducted numourous speedtests at numourous times of the day and night and my speed tests are all pretty consistant at 21Mbps Down and 1 Mbps up and with a 20ms ping.

My ATV is connected to a Netgear D6300 via ethernet and HD video streaming is fine on other medium such as youtube via my iPhone/iPad/PC etc.

I will say though, i have noticed downloading from itunes to my iPhone or iPad has slowed recently too.

I have reset my ATV back to factory and that did not seen to fix the issue's either.

My ATV sits on a shelf under my TV and in between a XBOX360 that is not connected to power and a PS3 that is on most of the time as it is my PVR and above a Wii U that is connected to power but not turned on. I am not sure if it's location makes a difference, but it as always sat there.

Any ideas that could perhaps help me out?