Ive seen this all the time
But when you use an AR MAX Save on Mario Kart Wii, when you connect to Wi-Fi, you DC after 5 mins. Learned this from watching my friend do it.
Wii Friend Code: 6372-5142-9386-0957
SSBB Friend Code: 2449-4407-7461
SSBB Nickname: Flash
COD:WAW Wii FC: 4597-4352-2899
COD:WAW Wii Nickname: Burger