I've recently tried to install CTGP-R as well as Wiimmfi onto my Wii. I followed the instructions from http://www.chadsoft.co.uk/. Everything seems to have worked, except for when I try to connect to Wiimmfi to play online. After failing to connect I get error code 20100 (Unable to connect to the Internet. Confirm the Internet settings of the Wii console). However, Internet connection tests are always successful, and I am also able to download ghosts from the CTGP-R channel. I've spent a good number of hours trying to find a solution to this problem, some discussions have said to clear the internet settings on the Wii and set it up as new, or to erase a MKWii license and create a new one to properly connect to Wiimmfi. Unfortunately, I haven't had any luck, and was hoping someone could lead me in the right direction on how to fix this error.