On Tue, 17 Apr 2001, Bruce Korb wrote:
> We are finding this problem to be becoming quite a problem.
> The `ifconfig down'/`ifconfig up' kludge only works briefly
> and is less effective each time until a full reboot.
> Hints and suggestions are welcome :-).

I don't have any hints or suggestions, but I do have the problem :)
Do you get "spurious interrupt" messages on the console before the
network starts flaking out?