Misc Wiimmfi Error Code 23302

[Cygis]

I was going to play yesterday on my Wii U using CTGP Mario Kart Wii to play Wiimmfi games. However, I got this error code which the wiimmfi error codes don't have it listed:This is not a Wiimmfi error. Maybe an error of a (transparent) proxy. I tried playing on my original Wii and it worked just fine. What's wrong?

 

[Wiimm]

I tried playing on my original Wii and it worked just fine. What's wrong?

Then it is a problem of your network or Wii U setup.