On Tue, 4 Jan 2000, Todd Whitesel wrote:

> With my TADPOLE3GX I have often run into an annoying buglet: suppose I forget
> to plug in the le0 transceiver before booting. Once I discover that I can't
> use the network, I plug in the transceiver but ifconfig down/up does not get
> it working. When I finally give up and reboot with the transceiver in, it
> comes up fine and normality is restored.
> 

Sound like the interface may be autosensing to 10BaseT, even though
there's no 10Base-T port there.

Check the media type in the output of ifconfig le0.  it should read
10Base5 to use the external transciever.  You may have to issue a
"ifconfig le0 media 10Base5" command to make it work right.