Two things - you may have problems with the intel computer. There are issues with DTV2PC and intel processors and on-board graphics.
My old laptop played this program very well. The caveat being that you have to have a strong signal. It worked flawlessly with 4 or 5 bars of signal strength. Anything below that and it doesn't matter. BTW - internet speed doesn't matter since the signal is just using your router and your not pulling in video over the net.