First suggestion would be a PCMCIA driver update
Xircom PCMCIA Ethernet Adapter Issues
Presario 1210 / RE-100 / debian 2.2 / kernel 2.2.12 / pcmcia 3.1.8 (Preston Landers)
Date: 2000, Apr 20
From: David Hinds <firstname.lastname@example.org>
Try again with 3.1.14 and see if that sorts out the problem. If not,
I have some other ideas...
to: "First suggestion would be a PCMCIA driver update"