SMC Wireless Card Settings


My SMC2435W 22mbs wireless card has been underperforming lately,
with download speeds ranging from 200 kbps to 2.8 mbps on a Charter
Pipeline 3 mbps connection. So I thought I'd post the settings of my wireless
card. The router is a Linksys WRT54G, set to Mixed speed (I run an
iPaq with WiFi) and a desired transmission rate of 11 mbps and no WEP
(since it stopped connecting with WEP enabled). The notebook is running
Win XP Pro on a standard home network. RWIN is set to 256960, according
to TCP Optimizer. Lowering this to around 33,000 causes an even slower
connection. Checking the speed at
formatting link
yields a fairly
consistent upload speed of 256 kbps (as it should be) and a download speed
that one second is 200 kbps and then 5-seconds later is 2.8 mbps, and then
it jumps back down to 200 kbps.
4x Ack Emulation - On
Antenna RX - Both
Antenna TX - Antenna 1
Authentication Mode - Auto Switch
Desired Basic Rate Set - 1,2,5.5, 11 Mbps
Desireed BSS Type - Infrastructure
Desire Channel - 1
Desired SSID - linksys
Desired Supported Rate Set - 1,2,5.5,11,22 mbps
Desired TX Rate - 11
ELP Support - Disabled
Fragmentation Threshold - 4096
LeapEnabled - Disabled
Leap User Name - tilwan
Mode 4x - On
Mode 4x Mixed - Off
Power Mode - Continuous Access Mode
RTS Threshold - 4096
Short Preamble - Off
WEP Option - WEP Disabled
Does anything here look out of place?
If not, I'm thinking of getting a Linksys 802.11.g wireless card. Should
that help?
Thanks!
Scott
Reply to
Scott
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Clarence,
I gave it a try...turning off the 22Mbps mode, but it slowed down even more. It looks like a better wireless card is the answer.
Thanks anyway! Scott
Reply to
Scott
Turn off the "22Mbps" mode, or PBCC. This was a non-standard method of speeding things up that varied from vendor to vendor. My SMC2435W played just fine with other 11b devices, but a new Netgear G router seemed to want to negotiate the 22Mbps speed. I could see it in Windows perfmon as an occasional blip in the "current bandwidth" that was only there for a second.
start-run-perfmon.msc + Performance Object = TCP "current bandwidth"
I did eventually buy a Netgear WG511 card.
Reply to
dold

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