[GTALUG] Network disabled on PC after last update

[sciguy]

Thanks a lot, Dave!

Paul

On 2021-04-18 12:47, David Collier-Brown via talk wrote:
> On 2021-04-18 12:20 p.m., sciguy via talk wrote:
> 
>> I have a desktop computer that dual boots into Ubuntu Studio and 
>> Windows 10. It is connected to the internet using a cat-5 cable to my 
>> router.
>> 
>> After the last update and rebooting, it turns out that I no longer 
>> have ethernet on Linux. This is not true on Windows, as I am writing 
>> you this email from the same computer.
>> 
>> I strongly suspect that there is an update issue that is disabling 
>> ethernet on Linux. Right now, my computer is in splendid isolation 
>> from the rest of the world. I can't even see computer resources from 
>> other computers in my apartment. I also can't see the router itself 
>> through my browser.
>> 
>> Any ideas as to what to do next to diagnose the problem?
> 
> I'd start with the network manger GUI, see if you can see anything
> obvious there, and if not, start debugging from the command-line.
> 
> In a previous life, I found the instructions for disabling network
> manager contained a lot of useful information.
> 
> If you take that route, use script(1) and a notepad to carefully
> record your steps, as a lot of networking stuff is sensitive to the
> order you do things in, and you want to make a good map of where you
> went, for the time when you want to undo the changes you made.
> 
> Oh, and make a backup of your home directory if you haven't already
> 
> --dave