Can't Navigate My LAN Or Ping

Nils Kassube kassube at
Mon Dec 8 19:19:53 UTC 2008

Leonard Chatagnier wrote:
> Well hell, I almost had the reply finished before I lost connection
> again. 

Maybe you should try to use an email program on your machine with POP3 or 
IMAP and SMTP instead of webmail. But that is probably not your first  

> --- On Sat, 12/6/08, Nils Kassube <kassube at> wrote:
> > Leonard Chatagnier wrote:
> > > Thanks for jumping in. BTW, ATT says I'm not
> >
> > connected to the network
> >
> > > on the wifi and that's why I can't establish a
> >
> > connection at
> >
> > > Doesn't seem likely to me
> >
> > but that's what they
> >
> > > say. How does one determine if they are connected to
> >
> > another wifi
> >
> > > network besides there own?
> >
> > I think the explanation of the wrong wireless network makes
> > sense. If
> > network manager is still installed, it may have undone your
> > static setup
> > and used DHCP on the other network. How did you do the
> > manual setup for
> > the wireless part? Can you post your
> > /etc/network/interfaces file?
> Network manager is still installed.  The new maching is in shop to
> replace cpu fan. But this 1999 Dell Dimensions XPS T450 needs much
> help. I used all of kde's network management programs but mostly
> network manager and kwifimanager which is flaky. I'll try to finish
> this post again but if you feel better about it I'd be happy to start
> up gnome and use it. 

I'm not familiar with Gnome because I use KDE - I suggested the Gnome 
version because I thought you were using it :)

> /etc/network/interfaces
> # Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or
> # /usr/share/doc/ifupdown/examples for more information.
> iface wlan0 inet static
> address
> iface eth0 inet static
> address

I think it is a bit unusual to have 2 interfaces with the same address, 
but from another of your mails I know that it worked with a previous 
Ubuntu version. Therefore I think it should work with your current 
version as well. OTOH, could this be the reason for your intermittant 
internet connection? As you are using only one of the interfaces at a 
time, I would suggest to use another address for one of the interfaces. 
You have in use for the other machine already, so use e.g. for eth0 while you keep wlan0 at

About your attached screen shots: To me that looks quite normal for the 
settings in your interfaces file. And that point seems to be moot anyway 
because you found out already that you can't connect to your router via 
the wireless port.


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