Cannot Get Back Ethernet Connection

[john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org]

> From: waltdnes-SLHPyeZ9y/tg9hUCZPvPmw at public.gmane.org
> Date: Fri, 27 Jan 2012 22:43:06 -0500
> To: tlug-lxSQFCZeNF4 at public.gmane.org
> Subject: Re: [TLUG]: Cannot Get Back Ethernet Connection
> 
> On Sat, Jan 28, 2012 at 02:39:37AM +0000, john.moniz-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org wrote
> 
> > I do show lo with ifconfig.
> 
>   OK, 2 possibilities...
> 
> 1) Try
> traceroute -n 157.166.226.26
>   or
> tracepath -n 157.166.226.26
> 
>   That's www.cnn.com.  If you can get to IP addresses, but not names,
> then you have a DNS problem.  What does /etc/resolv.conf look like?
> You can generally use the address of your ADSL router/modem (192.168.0.1)


OK, some good progress! Your suspicions were correct Walter, I was able 
to ping external IP addresses. So, with Ted's ifconfig and route 
commands, I can access the outside world.


The ubuntu /etc/resolv.conf file was empty. I copied the one from fedora and now I'm able to browse the internet. I'm emailing this from the problem system (ubuntu).

But the fix is not permanent. Whenever I boot up, I still get no eth0 connection (in ubuntu only) - eth0 doesn't even show up in ifconfig. How do I make it permanent?

One thing I noticed when I boot up ubuntu, which I never noticed previously - just before it starts to boot, I get a nearly blank screen with just the following on the very top:
resume: libgcrypt version 1.4.4
Googling this message, I see some grumblings about it, even some which link it to a loss of ethernet connection, but no solutions that I found. Anyone know what that's about?

Thanks,

John.



> Other options are...
> Google
> 8.8.8.8
> 8.8.4.4
> 
> Verizon
> 4.2.2.1
> 4.2.2.2
> 4.2.2.3
> 4.2.2.4
> 4.2.2.5
> 4.2.2.6
> 
> 2) If that doesn't work, we get desparate.  I notice that your working
> Fedora shows IRQ 25, but the non-working Ubuntu shows IRQ 23.  Note that
> you have to be root or use su/sudo to change settings with ifconfig.
> Can you list the *COMPLETE* output of "ifconfig eth0"?  Here are a few
> options...
> 
> Plan A) ifconfig eth0 irq 25
> and try the network
> 
> Plan B) ifconfig eth0 irq 23
> and try the network
> 
> There is no "Plan C", other than re-installing.
> 
> -- 
> Walter Dnes <waltdnes-SLHPyeZ9y/tg9hUCZPvPmw at public.gmane.org>

 		 	   		  
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