I have the same problem on Hardy Alpha 3 and Alpha 4 (can't remember
earlier). This doesn't happen in Feisty and Gutsy.
However, I installed 64-bit Debian Sid and there is no slowdown at all.
I even get 54Mbps instead of typical 11Mbps (!) over WPA-protected
access point.
I have built rt2500-source twice:
* 1:1.1.0-b4-3 for 2.6.21-2-amd64 kernel
* 1:1.1.0-b4+cvs20070924-3 for 2.6.24-1-amd64 kernel
Details follow:
# uname -smvro
Linux 2.6.24-1-amd64 #1 SMP Mon Feb 11 16:01:54 UTC 2008 x86_64 GNU/Linux
# COLUMNS=160 dpkg -l rt2500*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version
Description
+++-==================================-==================================-====================================================================================
un rt2500 <none> (no
description available)
un rt2500-2.6.18-4-amd64 <none> (no
description available)
un rt2500-2.6.21-2-amd64 <none> (no
description available)
un rt2500-2.6.24-1-amd64 <none> (no
description available)
pn rt2500-modules-2.6.18-4-amd64 <none> (no
description available)
ii rt2500-modules-2.6.21-2-amd64 1:1.1.0-b4-3+2.6.21-5
RT2500 wireless network drivers
ii rt2500-modules-2.6.24-1-amd64 1:1.1.0-b4+cvs20070924-3+2.6.24-4
rt2500 wireless network driver
ii rt2500-source 1:1.1.0-b4+cvs20070924-3
source for rt2500 wireless network driver
# iwconfig eth2
eth2 RT2500 Wireless ESSID:"my-essid"
Mode:Managed Frequency=2.437 GHz Access Point: 00:11:95:7E:00:86
Bit Rate=54 Mb/s Tx-Power:-3 dBm
RTS thr:off Fragment thr:off
Encryption key:3B5D-3C7D-207E-37DC-EEED-D301-E4 Security mode:open
Link Quality=84/100 Signal level:-51 dBm Noise level:-80 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
--
[Hardy alpha 4] Wrong bandwidth with rt2400/rt2500
https://bugs.launchpad.net/bugs/190515
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