Downloading an HD recording kills my wireless network connection!!


Whenever I choose an HD recording to download and begin the transfer to my laptop, I loose my network connection after about a minute. Windows 7 troubleshooter fails to fix it (says default gateway was not available) and I need to reset my router, but by then the download has been interrupted.
This didn't happen on my stepdad's T2 when I did the same (over a wired network)