I have been trying to stream some MP4 movie files from my PC to my Wii U but when I put my IP address in the bar of the internet browser I get an error code that says, Error Code: 112-1007 Could not display page. Did Nintendo change that so you can no longer stream from your PC?

try google searching that code or even go onto nintendo's website to figure it out, add me for the 3ds friend code below.... post yours if you want to add me, thanks

Well I tried looking it up via google but didnt find anything really

Not a problem with the Wii U. I tried with mine just then and was able to stream 1080p Apple trailers fine. Streaming 1080p trailers is what I use as somewhat of an acid test for video streaming. If it can do that fine it'll handle pretty much anything assuming the format is supported.

Assuming your Wii U is connected to your network properly I'm pretty much 100% sure the problem is with your PC not the Wii U.

Well its connected via wireless to the modem if thats what you mean. I can stream Netflix and use the browser on it just not stream MP4s. I dont know why but when it comes to computers I am not to technical with them.