Hi,
Did you check your router by any chance? Mine has a 5GHZ and a 2.4GHz. Ive tried:
2.4GHz Mixed Mode - Doesn't work
2.4GHz G OnlyMode - Doesn't work
2.4GHz N OnlyMode - Doesn't work
2.4GHz B OnlyMode - Doesn't work
5.0GHz Mixed Mode - Doesn't work
5.0GHz A OnlyMode - Doesn't work
5.0GHz...