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Axtroz

Member

From: Bulgaria

Registered: 2012-01-20

Posts: 1

Atheros AR9285 uses 802.11bg only and not 802.11n

Greetings!
For sometime now my wireless connection is always 802.11g (54Mbit/s) but my WiFi card is 802.11n capable.
Some google-ing sent me to topics from 2010 stating a bug with the ath9k driver and kernel panics, but this is not the case.
There's some diagnostic information below:

lshw:

           *-network
                description: Wireless interface
                product: AR9285 Wireless Network Adapter (PCI-Express)
                vendor: Atheros Communications Inc.
                physical id: 0
                bus info: pci@0000:06:00.0
                logical name: wlan0
                version: 01
                serial: 68:a3:c4:xx:xx:xx
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=ath9k driverversion=3.6.2-1-ARCH firmware=N/A ip=172.16.1.81 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn

dmesg:

[   52.657030] wlan0: authenticate with 00:25:9c:xx:xx:xx
[   52.671405] wlan0: send auth to 00:25:9c:xx:xx:xx (try 1/3)
[   52.673468] wlan0: authenticated
[   52.673603] ath9k 0000:06:00.0: wlan0: disabling HT as WMM/QoS is not supported
[   52.682605] wlan0: associate with 00:25:9c:xx:xx:xx (try 1/3)
[   52.686872] wlan0: RX AssocResp from 00:25:9c:xx:xx:xx (capab=0x411 status=0 aid=2)

I think the problem lies in the  ath9k 0000:06:00.0: wlan0: disabling HT as WMM/QoS is not supported line, because WMM is needed for 802.11n to work.
I tried loading the ath9k driver with nohwcrypt=1 but it's not working. Tried removing the password from the wireless network (WPA/WPA2 mixed combo to none) but it still connects with 802.11g and speeds are low.

Any ideas are greatly appreciated!