[ubuntu-uk] Configuring Virgin cable modem

Rob Beard rob at esdelle.co.uk
Sat Nov 15 10:50:44 GMT 2008

dianne reuby wrote:
>  > From a purely non OS perspective of this, are you using the same 
> network cable as your husband? just to be sure.
>  > You say it has ethernet connections, is it a router as well or do you 
> have to switch the cable? If you have to switch the cable, are you 
> rebooting > the modem when switching over?
> On the old modem we just used one USB cable, and swapped it between PCs. 
> On the new one, we've added a router, which seems to be compatible with 
> cable as it's working OK on the XP machine. We each have an ethernet 
> cable to the router, and then there's a cable between modem and router. 
> I'm sure all the cables are OK, as I've swapped them around and the XP 
> machine always works.
> What I really don't follow is the activation - the new modem was 
> activated through the XP machine, as Virgin techs don't have a crib 
> sheet for Linux or Firefox. Is that why my Ubuntu machine won't work? 
> Because the modem thinks the XP machine is the only valid machine that 
> can use it?

Actually the modem thinks that the router is the PC.  It shouldn't make 
any difference which machine connects to the router as long as the 
router hasn't got anything like MAC address filtering enabled (which as 
far as I know generally only affects machines connecting wirelessly anyway).

> Dianne
> I'd forgotten how slooowwww some OS's can be!

Once the modem is activated it should just work.  Generally you have to 
turn the modem and router off, turn the modem on, leave it 30 seconds to 
sync and then turn the router on.

If you go into System -> Administration -> Network and unlock the 
settings what do you get under Wired Connection?

Mine has Roaming Mode disabled and it's set to Automatic Configuration 


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