I can not guarantee it because I don't fully know your network. If you have multiple routers (usually on accident, most people don't know it) or if you have cellular based internet then it may be more difficult if not impossible.

The best first step is for you to download our software (free to download) and run the Router Detector (free to run) and see if it says you have 1 or 2 routers.

If you have 1 router and you do not have cellular based internet then i'm 99% certain we'll be able to get a port forward setup and working which should fix your Wii. If our software can not do it then either Tedie or Allen can remote you and fix it manually.