Install failure (internet)

[John Levin]

Hi,

I'm trying to install Ubuntu Warthog on an old 266mhz laptop. I've 
tried both the Preview release and yesterdays cd, but run into the same 
problem - namely everything freezes when I try to get onto the net.

First off all, during the second stage of the install, on trying to 
download update soff the net I get the following error message:

Testing apt sources...
Err http://archive.ubuntu.com warty/main Packages
   Could not connect to archive.ubuntu.com:80 (82.211.81.138). - connect 
(113 No route to host)
0% [Connecting to archive.ubuntu.com (82.211.81.138)]

and then everything freezes.

If I skip this download stage, then boot up (everything seems fine - 
checked dmesg etc) and open Firefox (set to go to the ubuntu homepage), 
after about thirty seconds, the entire system freezes. Pinging 
google.com (via a terminal and virtual console (ie without an x 
display) also freezes everything.

I connect via a router, broadband, yenta socket - everything is working 
fine for my other computers, including another ubuntu-installed laptop.

Done a quick scan of bugzilla, but couldn't find anything resembling 
this.

What now?

TIA

John