Can't play files from my computers shared folder on wd live

I have 10mb virgin broadband using virgin superhub. My computer didn’t have wireless so I bought x2 belkin wireless adapters to stream from computer upstairs to wd live downstairs. My wd live can see my shared folders on my computer but when i click play on ie a movie  they come on for a second and then go off , as if its loading. When i go through youtube on the wd live it works fine. Any help would be great. Ive spent weeks trying to sort it out. 

Network configuration, try the steps in the link below:

If BOTH of your devices are WiFi, then you probably don’t have enough WiFi bandwidth.