WiiU questions - please help!!!!

[Bajablo]

Heard that it is usually DNS issues that prevent the wiiU from working ok.

If you can enter that manually you can point it to googles DNS servers, IP:

8.8.8.8 and/or
8.8.4.4

try that and see if it works better.
no idea how to set the manual IP setttings etc. on the wiiU though