Ok - tried this and got the following result:
Originally Posted by kreggz
Now obviously this suggests there's something wrong with authentication, and given that there's no problem authenticating from a live-ubuntu session connected to the office LAN, I'm guessing there's a problem with my routing table?
telnet <URL> 80
Trying <IP address>...
Connected to <URL>.
Escape character is '^]'.
You do not have permission to view this directory or page using the credentials that you supplied because your Web browser is sending a WWW-Authenticate header field that the Web server is not configured to accept.
<p>Please try the following:</p>
<li>Contact the Web site administrator if you believe you should be able to view this directory or page.</li>
<h2>HTTP Error 401.2 - Unauthorized: Access is denied due to server configuration.<br>Internet Information Services (IIS)</h2>
Connection closed by foreign host.
Any tips for determining what's missing?