Well, I came back with another problem! Finally I learned to pronounce our name well (Wiimmfi in place of Wiimmifi). With the jokes, my "friends" stole the Mario Sports Mix disc and I could not get it back (for various reasons). Fortunately I found a copy of the online disk I installed with WBFS manager by formatting the USB stick in WBFS. Install the patch and trying to play online tells me that it's impossible to connect to the internet and check my settings (error code 20100). However, the internet works everywhere, on the Wii the patch with Mario Kart works and the connection tests succeed. What should I do? I am desperate!