I can confirm that it works with WEP and Unsecured wireless connections. I use WPA2 and messed around for hours with my games and flashing firmware until the thought of "try changing your wireless" came to mind, which then worked perfectly on M33-6, GEN-D2, and GEN-D3. Any other security gives the "System Needs an Update" message.

I would leave my connection set to WEP but there's my PS3, my brothers PS3, an iPhone, and 3 other computers already set for WPA wireless that I can't be bothered to change around just for one plugin.

Hopefully it'll be supported in the next version.