This may be in the wrong forum but happy for this to be moved where appropriate.

My work provides remote access through the use of smart card security and a Cisco VPN Client.  One of my colleagues is having issues with hers in that it can't establish the VPN tunnel when the secure connection is being created on broadband (no issues with authentication - we've checked with dialup).  The VPN client is preconfigured for us and requires no tweaking (apparently).

She's using the same model laptop as me (Dell D600), the same modem (Linksys WAG200G), and the same ISP (Xtra), and I'm not getting any issues.  The only difference in our setups is that I've upgraded the firmware in my modem whereas hers is out of the box.  She's going to try upgrading the firmware tonight and see if that works (otherwise I'll try her laptop on my connection).

Our technical boffins reckon it may be the modem but then I can't see why mine would work and not hers in that case.  Is this a familiar issue to anyone else?