#663: very low link quality using madwifi (current-ng)
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Reporter: fca | Owner:
Type: defect | Status: new
Priority: blocker | Milestone:
Component: madwifi: other | Version:
Keywords: receive sensitivity | Patch_attached: 0
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Hello -
Using the latest madwifi -
I have two cards, a D-Link DWL-G122 and an Atheros one in a Fujitsu
laptop. My access point is about 1 metre from the computer. The D-Link,
using ndiswrapper, always reports 100% quality and no noise, even away
from the access point. The Atheros reports 45/94 quality under Linux, with
lots of noise, and stops working about 5m from the access point. Under
windows, the card works normally. This makes the card practically useless
under Linux.
I also noticed that most people using madwifi, when reporting about some
problem, and when they include some iwconfig output, always have a very
low link quality.
I am now in another room, away from the access point:
D-Link reports:
wlan0 IEEE 802.11g ESSID:"cardonet"
Mode:Managed Frequency:2.462 GHz Access Point:
00:60:B3:E2:59:96
Bit Rate:24 Mb/s Tx-Power:20 dBm Sensitivity=-115 dBm
RTS thr:2347 B Fragment thr:2346 B
Encryption key:off
Power Management:off
Link Quality:100/100 Signal level:-62 dBm Noise level:-256 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
however, the Atheros can't even find the access point, as it only works
when very near the transmitter:
ath0 No scan results
Any clues?
ath_pci is loaded with rfkill=0
wlan_scan_sta is also loaded OK
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Ticket URL: <http://madwifi.org/ticket/663>
MadWifi <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity_______________________________________________
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