Internet access problem

[Markus Schönhaber]

R Page-Jones:

> I am using a D-link router DSL-G624T with wired connection.
> 
> I have no internet problems with XP, but when booted into Ubuntu I 
> cannot access the internet.
> I have a connection to the router.  (Putting 192.168.1.1 as a URL in 
> Firefox brings up the router page.)

Since you can connect to the router, your network interface obviously
has been assigned an IP address.
Does (on the command line)
ping -c 2 91.189.90.41
show replies while
ping -c 2 www.ubuntu.com
does not? If so, post the contents of /etc/resolv.conf.
The output of the command
route -n
might be useful too.

> I have tried editing the IP4 stettings to "manual". but I cannot 
> complete this action because I don't know what to put in to "Search 
> domains" box. So "apply" stays greyed out.

Since you probably didn't do any manual configuration on XP, there
should be no need for manual configuration in Ubuntu either.
But as an experiment you could enter something like foo.bar there (just
to enable you to apply the settings).
The setting of "Search domains" isn't exactly important but rather
something for convenience. Simplified explanation: if your machine wants
to find the IP address of a simple host name, like "myhost", and fails
it will append the value of "Search domains" to the host and try
again[1]. I. e. it would try to find an IP for myhost.foo.bar in this
example.

[1] The explanation isn't technically exact, just meant to provide an
idea for what "Search domains" is good for. If you're interested, take a
look at
man resolv.conf
which describes this technically accurate.

-- 
Regards
  mks