Re: wifi bit rate

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On 05/21/2012 02:33 PM, JD wrote:
On 05/21/2012 01:34 PM, Konstantin Svist wrote:
On 05/21/2012 01:18 PM, JD wrote:
Any wifi protocol savvy people who can explain this:

iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"Private"
Mode:Managed Frequency:2.452 GHz Access Point: 00:AA:BB:CC:DD:EE
          Bit Rate=18 Mb/s   Tx-Power=27 dBm
          Retry  long limit:7   RTS thr=2346 B   Fragment thr=2346 B
          Power Management:off
          Link Quality=70/70  Signal level=-36 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:25   Missed beacon:0

The access point is a 54G wifi gateway and router.

My wifi card is the Atheros AR5008 which is an 802.11n card.

How could the bit rate be restricted to 18Mb/s??
Is this a problem with the ath9k driver or the wext driver?
PS: I did not have the issue until installing FC16. This
problem was absent in FC14.


I thought wifi adjusts the data rate on the fly based on how strong the signal is. Try moving the laptop closer to the router, at least just to see if the rate goes up...

No difference!!
Stuck at 18mb/s

By the way: I changed wifi interface on my machine to an rtl8187
and still iwconfig reports  18mb/s, with full signal quality at 70/70 !!!

# iwconfig wlan1
wlan1     IEEE 802.11bg  ESSID:"Private"
Mode:Managed Frequency:2.452 GHz Access Point: 00:AA:BB:CC:DD:EE
          Bit Rate=18 Mb/s   Tx-Power=20 dBm
          Retry  long limit:7   RTS thr=2346 B   Fragment thr=2346 B
          Power Management:off
          Link Quality=70/70  Signal level=-25 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:21   Missed beacon:0



Hm, you're right - the quality is out of 70 and the rate is really low.. here's mine:
wlan0     IEEE 802.11abgn  ESSID:"Redacted"
Mode:Managed Frequency:2.412 GHz Access Point: 00:14:D1:C4:4C:3F
          Bit Rate=1 Mb/s   Tx-Power=14 dBm
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=62/70  Signal level=-48 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1  Invalid misc:20   Missed beacon:0

Maybe it's because I'm also connected over ethernet, so wifi is not being used, so it's in powersaving mode of some kind..? See if your rate goes up/down if you're actively transferring a bunch of data.

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