Red Hat Bugzilla – Bug 589331
ath5k wireless network has bad reception and low throughput with AR5211
Last modified: 2011-06-27 12:07:03 EDT
Description of problem:
ath5k wireless network has bad reception and slow speed with AR5211 (IBM Thinkpad T40p)
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot fedora 13 beta with all latest updates from updates-testing
2. Sit close to the access point. Download a big file. Watch crippled speed (<1MBit)
3. Try to move away from the access point. Some meters, and a stair after, suddenly, the link disappears
Has to sit close to the access point, thus not much point in using wifi in the first place. Bad network throughput.
Good reception. High throughput.
There are a lot of bugs tagged ath5k in Red Hat's Bugzilla, and in other distributions' bugtrackers too. I could not find any fedora specific matching AR5211, though.
Hard-coding the transfer rate, for example by
iwconfig wlan0 rate 11M
has no effect
Not sure if there is much to do about the antenna reception until the driver gets more built-in logic, see http://wireless.kernel.org/en/users/Drivers/ath5k
Workaround: Use the not-so-free madwifi driver, available from http://snapshots.madwifi-project.org/madwifi-trunk/ , rmmod ath5k, modprobe ath_pci.
Does it works on F12?
(In reply to comment #1)
> Does it works on F12?
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