It may assist or it may not but here is some settings from my setup.
It was all set up manually.
My security mode is WPA-Personal, WPA is set to WPA only for games compatibility, I used a nice long pre-shared key with upper and lower case characters, the security type was WPA-Personal as I had problems with WPA2, the encryption type when connecting from windows was set to TKIP.
I understand that you're quite savvy when it comes to these things so I am merely trying to assist wherever I can by sharing what knowledge I have.
Good luck with it.