[xubuntu-users] Could not find internet address

Nils Kassube kassube at gmx.net
Sun Nov 2 19:39:30 GMT 2008


Daan Hoogland wrote:
> Then I entered 'nm-applet &'. The answer was not a simple OK but a
> message I did not write down. I got the idea that something was not OK.
>
> When I looked at the Desktop I noticed the network icon I missed
> before has returned to the screen (2 monitors connected to each other
> with a cross).

The error message seems to be not important because the icon reappeared 
and you can use it.

> As you mentioned I tried to configure the wired connection manually.
> The window 'Network Connections' has 5 tabs: wired/wireless/mobile
> broadband/vpn/dsl.

Well, you mentioned Xubuntu 8.04 in your first mail and 8.10 in another. 
But obviously I didn't realize that you were now using 8.10 and my 
description was for 8.04. Anyway, now I have the 8.10 LiveCD running and 
try to find out where your problem is. So the procedure is to right click 
the network manager icon in the top panel and select "Edit 
connections...". That's where your 5 tabs are.

> 'wired' shows the existing situation: Auto eth0 - never (the word
> 'never' seems to pose the problem to me).

Don't worry, the "never" only means the connection has never been 
established. During my trials I have also seen "now" and "2 minutes ago".

> Also 3 buttons can be seen: add/edit/delete.
>
> Editing the wired 'auto eth0' connection gives a submenu with 3 tabs:
> wired/802.1 x security/IPv4 settings.
>
> Under 'wired' one can choose to enable 2 items: connect automatically
> and system setting. Both choices are unabled by default. I kept it
> this way (I enabled both choices but that did not seem to make a
> difference).

Well, the default from the LiveCD is both enabled. I would suggest to 
enable both because here the connection was established automatically at 
login. And if I uncheck both boxes the connection doesn't work 
automatically any longer.

> The subscreen also shows some values: MAC address: 00:D0:59:14:37:41
> and MTU - automatic. I didn't change these values either.

Good. How about the "802.1x Security" tab? Please make sure you have 
unchecked the box for "use 802.1x security for this connection".

> Under 'IPv4 settings' one can choose among 5 methods: automatic
> (DHCP)/automatic (DHCP) addresses only/manual/link-local only/shared
> to other computers.

I suppose your router works as a DHCP server as well. Therefore 
try "Automatic (DHCP)" and click OK. Then the connection should be 
established. If that really doesn't work, try "Manual" instead 
of "Automatic (DHCP).

> Only when I choose 'manual' the button 'OK' at the end becomes grey,
> meaning that the changes I make into this menu (entered IP addresses
> for pc/netmask/gateway and DNS servers) cannot be saved.

The button only becomes active after you have entered all of the necessary 
information. After you have selected "Manual", click the button "+ Add". 
Then you can type the IP address "192.168.2.100" and press enter. Then 
click below the "netmask" and type "255.255.255.0" and press enter. In 
the same way enter the gateway address "192.168.2.1". Then enter your DNS 
server address (192.168.2.1 or your ISPs DNS server) in the appropriate 
field and the OK button should be active.

> At the end I entered your last given command:
> sudo /etc/init.d/networking restart. The answer was: reconfiguring
> network interfaces [OK}.

I did not need this command for 8.10 but it doesn't hurt.

> Connection to the internet is still not possible. To me the problem
> seems that I cannot give this laptop-pc an IP-address.

If you still don't get a connection, maybe your cable is faulty? If you 
have another ethernet cable available you could try that one.


Nils



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