FWIW I used to run  the labs at Duluth Business Univ. and before I got there the stock card they put in was the 3C905B-TX. (And an earlier 905 variant) We had no end of trouble under Win 95 with some of these cards. In many machines (maybe 20%-30%) they would occasionally "lose contact" with the network. The only way regain a connection was to shutdown (not restart) the system, count to 15 or 20, and reboot. This worked 99% of the time. The other 1% required doing the process twice. (Usually because the wait was not long enough.) 

Take what you will from that information. Personally I would replace your card with an equivilant Linksys card. At DBU we switched to Linksys while I was there and only one failure and that was a DOA card. 

Jack

On Tue, 07 November 2000, Yaron wrote:

> 
>   Hi,
> 
> Kinda off topic, but has anyone had this happen to them before?
> 
> I've got a 3com 3c905-TC NIC. Used to work fine, now it apparently is
> dropping about 25% of all packets. Movied it to another machine and it
> does the sam there. All the other NICs are 3coms, most of them also 905's
> (though various models). 
> 
> One reason I think it might NOT be the NIC is I've done some TCPDUMPs, and
> when you're pinging other machines they send out arp requests for this
> card every 10 seconds or so. Pinging from other nics doesn't do that.
> 
> Anyone have any ideas before I go get a new 3com?
> 
> 
> -Yaron
> 
> --
> 
> 
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