Intel Centrino Advanced-N 6200 AGN Card and ASUS RT-N56U

[R.Esteves]

Hi Guys,

I replaced my Vaio's Wireless Card (Atheros AR9287 2x2 single band) for an Intel Centrino Advanced-N 6200 (2x2 dual band). Now I can't connect at 300mbps to my router (Asus RT-N56U 2x2 dual band) not in 2,4ghz nor 5ghz. It actually connects at 300mbps but after 1 or 2 seconds it drops to 150mbps and stay there.

All configuration of the network card and the router are correct. N Only, 40mhz, WAP2-Personal, AES, WMM Enabled etc... (tried to change preamble from long to short, enable and disable WMM, and always got the same results: 150mbps at most).

Any ideias to solve that?

Here are images of the card and router config.

Thanks!

Imagens will continue...

 

[R.Esteves]

Continue...

 

[R.Esteves]

Final images

Can anybody help?