Windows NT setup with 3Com 575b PCMCIA..

After installing Windows NT when I add networking utilising the 3Com card, with the latest drivers from 3com, at IRQ9. The PC hangs indefinately on shutting down. The PCMCIA card services also registers a re cross on the card's slot and the Domain controller cannot be located...This card and Laptop were functioning without problems before I had the bright idea of rebuiling with a new desktop!!!!
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etorbensonConnect With a Mentor Commented:
I had this exact same problem last week setting up a ThinkPad 600 with one of these cards. The way I "worked around" it was to wait until Setup was finished, apply SP6A (I'll bet you only need SP3 or SP4 though), install networking from the NT desktop, install the 3Com card, and reapply the service pack. When I rebooted, all was fine. Maybe it was a flaw in the PC card drivers that was corrected in a later service pack.

I also found this file in the 3Com driver pack, under \HELP\NTCONFIG.TXT. This file lists out suggested IRQ and address configurations for several laptop models.
Check the BIOS and ensure that there are no other devices using IRQ 9. You may find that USB / Sound or Video is also using this IRQ resource. Juggle IRQs so that the 3com NIC is not sharing IRQ. Also try the previous version of the network drivers.
LemonkidAuthor Commented:
Well eventually it can down to the most obvious reason being the answer; I changed cards installing a 574 instead. I had installed both SP4 and SP6 before trying to install the card and still received no joy, although I think etorbenson was on the right track, as I expect I'll have no problems trying to re-install the card...So you've got the points!!
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