File transfer from windows 7 pc/laptop to wd tv live connected usb fails

Hello, if you are using a USB powered hard drive connected to the WDTV, avoid using any extension cables or USB hubs. For a more stable connection you can also try setting a static IP for the WDTV. Check page 85 of the manual for more information. 

http://www.wdc.com/wdproducts/library/UM/ENG/4779-705062.pdf#page=190