On Tue, 15 Mar 2005 10:18:58 -0600, "JB"
<(E-Mail Removed)> wrote:
>Keep chekcing the driver for the G only mode. Also, check your router for a
>G only mode.
The client radio follows whatever protocol is offered by the
unspecified central access point or wireless router. The client radio
drivers I've tinkered with don't allow much control over the radio.
If you're going to find a G-only mode setting, it will be in the
unspecified access point.
>There oculd be something in that HP case that is causing
>interference -- I know certain PowerBook models couldn't connect for more
>than about 50 feet because of the metal case. Can you tell what the HP is
>made of?
Permit me to offer an alternative test. Drag the unspecified HP model
laptop to the nearest wireless hot spot or friends house and take both
the access point and environment out of the picture. Now, try a
performance benchmark test. If it works well, it's either the access
point settings, possible chip incompatibility, or localized
interference from other nearby systems to which the HP is apparently
more sensitive.
If it also runs badly at the hot spot, then there's something amis in
the HP only. My guess is a driver issue. I've seen an oddity several
times that I don't understand. I take a perfectly good working laptop
or PCI card radio, and upgrade the manufacturers supplied drivers.
The range, sensitivity, and performance drops dramatically with the
upgrade. I tinker, tweak, tune, hack, swear, and nothing helps until
I downgrade the driver. It just got with a DWL-520 card going from
2.0 to 2.1 drivers. Therefore, if all else fails, try a previous
driver revision, or drivers from the chip manufactories web pile (i.e.
Intel, Realtek, Atmel) instead of those supplied by HP.
One other thing to check is how busy is the system when moving files.
Start the task manager and check the CPU and memory usage graphs while
copying large files over the wireless. The numbers vary wildly with
model, drivers, card type, and laptop RAM, but it should NOT be
totally maxed out. Compare it with the working Sony for a sanity
check.
I dunno about the metal shield theory. Most of the mini-PCI based
radios expect the laptop to have an antenna in the LCD display section
with a coax with a flimsy u-FL connector dribbling down to the
mini-PCI card. The loss in the coax is substantial but it does
elevate the antenna as high as possible and gets it away from the
noisy CPU section.
What's inside an HP laptop?
http://www.LearnByDestroying.com/pic.../Inside02.html
--
Jeff Liebermann
(E-Mail Removed)
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558