A question and something to try
Xircom PCMCIA Ethernet Adapter Issues
IBM 10/100 EtherJet Cardbus (John Payne)
Interrupt conflict? (David Hinds)
i don't think so (John Payne)
The system log messages are important (David Hinds)
here's the logs (John Payne)
Date: 1999, Dec 02
From: David Hinds <email@example.com>
Do you have any other cards that work (or not)?
Try setting PCIC_OPTS="irq_mode=2" in /etc/sysconfig/pcmcia.
still no luck by John Payne, 1999, Dec 03
to: "A question and something to try"