Playing over WFC

Hello,

i am looking for a correct statement if it is possible to play mario kart over wfc with the dolphin emulator?

I have a own wii and have made a backup of the nand. I have add this successfully to the dolphin emulator network-branch and can use the system menu as well. I also dumped the certificates, but what i have to do with it?
In the wfc i get error 20100 - so i think mario kart has no possibility to connect over my wifi.

Can someone help me or is there actually no possibility to play over wfc with dolphin?

thanks