Re: intermittent or not? "Could not resolve 'deb.debian.org'"

[Dan Ritter <dsr@randomstring.org>]

Erik Josefsson wrote: 
> I have successfully put the [5 May Teres image] on three SD cards and all is
> fine (well, as far as that the exploration of the box-add-gui option goes),
> except that it seems only one of the SD cards can sometimes connect to
> deb.debian.org when I do sudo apt update.
> 
> The other two say "Could not resolve 'deb.debian.org'", every time i try.
> 
> The old hp laptop that is about to break down does sudo apt update without
> complaining.
> 
> The three SD cards should be identical.
> 
> Can there be a limit on the server deb.debian.org on how many times I can
> ask it for data?
> 
> Can there be a limit on my wifi router?
> 
> Are the SD cards not identical after all? If not, where do I look for a
> difference that could explain the difference between how they work when
> doing apt update?
> 
> Server response looks like this:
> 
> debian@box:~$ sudo apt update
> Err:1 http://deb.debian.org/debian buster InRelease
>   Could not resolve 'deb.debian.org'
> Err:2 http://deb.debian.org/debian buster-updates InRelease
>   Could not resolve 'deb.debian.org'
> Err:3 http://security.debian.org/debian-security buster/updates InRelease
>   Could not resolve 'security.debian.org'
> 
> The same command of course works perfectly fine when I connect the Teres
> laptop directly to the internet with an ethernet cable (through USB).
> 

I got this same behavior yesterday when firing up a new Debian
laptop. Turned out the wireless card was down.

-dsr-