How to enable 802.11n Wi-Fi?

[Anixx]

I have a 150-Mbit capable router and a notebook with Atheros AR9485-EG wireless adapter.

The connection speed is always 54 Mbit/s. The router is set to b/g/n mode. Irf to set it into 11n-only mode the connection cannot be established at all. What should I do to enable 11n?

 

[matts6887]

Well; i would try setting the adapter to just wireless n if possible and see what happens. If that does not do anything; there may be a setting(s) in your router configuration page that may fix the issue. But since i can not see your router etc; I cant tell for sure.

 

[Slartybart]

What make and model is the router?

AR9485 Specs are OK

Frequency Band 2.4 GHz 
Network Standard 802.11b, 802.11g, 802.11n
Modulation Modes
OFDM with BPSK, QPSK, 16 QAM, 64 QAM; DBPSK, DQPSK, CCK

FEC Coding Rate 1/2, 2/3, 3/4, 5/6
Hardware Security AES, TKIP, WEP
Quality of Service 802.11e
Media Access Technique CSMA/CA
Communication Interface PCI Express
Peripheral Interface GPIOs, LEDs
Supported Data Rates 
IEEE 802.11b 1 to 11 Mbps
IEEE 802.11g 6 to 54 Mbps
IEEE 1-stream 802.11n 6.5 to 150 Mbps

Operating Voltage 1.2V +/-5%, 3.3V +/-10%
Package Dimensions 7 mm x 7 mm
Package 56-pin LPC