I have three computers in my house. All occasionally stream from my slingbox in London. The two older computers show the programs perfectly--crystal clear. However, on my new computer running 64 bit Windows 7 Professional with an Intel 17 processor, the bit rate fluctuated wildly when not hard wired. My router is excellent and my download speed is around 50, upload around 12. When I am hardwired on the new computer the bitrate is generally 2000-3000. When I go wireless the bitrate goes haywire. Could this be the product of the ac wireless card in the new computer?