NIC Memory Corrupt

I work at a small company and use an older computer running Windows 98 as the DNS, DNCP server.  I don't know much about this at all.  It loads NetBSD 1.5.3 and uses the xterm terminal.  Starting about a month ago, about once per day, or every other day, the internet stops working.  I go to the server room, and on the screen of this computer it says "NIC Memory Corrupt - Invalid Packet Length."  Then several lines of "Message Repeated x times".  I hit the reset button on the computer, it reboots, and everything works fine until it happens again the next day or so, and the pattern continues.  It is a short term solution to reboot, but how can I fix it permanently?
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gheistConnect With a Mentor Commented:
ifconfig -am.

short packet means ethernet desync by switch/hub and nic operating at slightly different frequency, or cable losing part of ethernet frame.

error message should mention netcard name like dc0 or fxp0. ifconfig fxp0 down up resets card instead of resetting system.

If you think you are able to install new NetBSD 4.0.1 on new (actually older) machine - go for it, otherwise we will keep fixing your netcard.
It is cable problem.
NetBSD 4.0.1 handles this better.
What is network driver used?
jeffwhiteexpertAuthor Commented:
What do you mean by a cable problem?  I'm not sure what network driver is used.  How do I find this out?
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