Networkiing with wdtv players

I tried the wifi route and its a complete waste of time.  I finally bought to right adapter and got it to connect but it would not stream hd movies, and  this is with trying 3 different wireless n routers.  So i got off my butt and got cat 5 to the second floor of my house and now everything works great.  Today i  bought a dlink dns-321 2 bay hard drive enclosure with a 2tb seagate drive.  I accsess the movies through network shares and everything works great.  Weird thing is the only way it will connect to my nas drive is if i have a thumb drive connect to the usb port on the wdtv player. Just letting your guys know  dont waist your time on trying to do it wirelessly.