3Com Wireless PCI 11 a/b/g freezing up Windows XP

Good morning all.
I have tried for a good 36 hours to install 3 wireless PCI cards from 3Com into some computers in the widest range of options and available resources and whenever they are installed, they make Windows XP Home lock up - either at random intervals or just as the card is installed into the system.
However, when i installed this card on a WinXP Pro SP2 machine (Cel 2.66GHz - 775, ASRock 775VM800, 256 DDR @ 266), not only did it not lock up, it is running perfect.

System Specs:
QDI Advance 6T-L
Cel @ 1.2GHz
256 SDRAM
40GB Western Digital
Win XP Home

System tested with following settings :
3Com Lan Manager (With and Without)
Service Packs 1, 1a and 2 as well as without a SP installed
Onboard LAN/Audio disabled/enabled
Used on all 3 PCI slots
IRQ settings changed/forced

The worst part about it is that, when in safe-mode with networking, they work flawlessly. As soon as i boot up Windows normally, the PC locks up.

Anyone have a solution that i haven't seen yet ?

Thanks

Alex
LVL 2
AlexD_GrAsked:
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imacgoufCommented:
Hi,

Wonder you have already try the latest setup software.

Download the latest software from 3Com
http://www.3com.com/products/en_US/result.jsp?selected=6&sort=effdt&order=desc&sku=3CRDAG675

3CRDAG675    12 Aug 2005   2.0.0.1   19.70 MB  
New version of installation files with driver for the 3CRDAG675, 11 a/b/g Wireless PCI Card . This is a self-extracting file that will extract the installation files and driver to a location on your hard drive (default C:\3com). Includes 11 a/b/g Wireless PCI Card Driver and 3Com Wireless Utility for 3CRDAG675.  
AlexD_GrAuthor Commented:
Yep - installed the latest drivers too - my fault, forgot to mention that.

Also updated the firmware of the USR router that i bought at the same time, in case that was the problem.. nothing.
AlexD_GrAuthor Commented:
Also mentioned that i spent 45 minutes on the phone to 3Com in England to try and solve the problem - their help was to install sp1a and try disabling the soundcard and onboard lan.
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mtmasterCommented:
Alex - In the HARDWARE section of your Wireless PCI, reduce the tx/rx rates to 10Mbps/ half-duplex .  This has worked flawlessly in the order PC's .
AlexD_GrAuthor Commented:
Ok just to let people know - this was indeed a hardware fault. The cards would not work with a SD-RAM-based PC and, as soon as i upgraded the pcs to something more modern, they worked flawlessly.

Thanks for the replies and help - this was solved a different way
GranModCommented:
PAQed with points refunded (350)

GranMod
Community Support Moderator

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