adsl connection troubles with ubuntu

[Thilo Six]

gudy zopfi wrote the following on 09.12.2006 07:14:

<snip>

> I've just installed ubuntu(6.10)

<snip>

> BUT internet acces..I can't get it right
> I get a message, "there are 25 updates available" so
> that means ubuntu has connected to a server somewhere,
> but the download fails always
> Also if I start firefox, I can't load any page
> (timed out every time)

<snip>

> Thank you so much for your help
> 
> Gudy

Maybe have a look here:
https://launchpad.net/distros/ubuntu/+source/dhcp3/+bug/61989

check with "ifconfig" :

$ ifconfig | grep --color=auto MTU

Your MTU should at least be s.th. like around 1500.

HTH Thilo