Get a small switch and link your pc, nas and router to the switch, therefore access to the NAS will bypass router.
Efros: The crossover cable I used was the original cable I used, I just cut off the connecters and re wired it to be a crossover cable. So since this produced different results I know it is not the cable.
wortelsoft: I can't adjust the port speed of router or my NAS but I did try 100 FD, 100HD and Auto on my HTPC and this did not make a difference.
Any more ideas??