Can't Update after installing from centos

NethServer Version: 7.6
Module: No Module

I’m trying to install nethserver on a Celeron 1037u motherboard but the installer doesn’t work so i tryed to install centos and then nethserver. After instaling nethserver with success from centos i get problens with the repositories and can’t update install any module.
I get this error:

Loaded plugins: changelog, fastestmirror, nethserver_events
Determining fastest mirrors
Could not retrieve mirrorlist e-base&arch=x86_64&nsrelease=7.6.1810 error was
14: curl#6 - “Could not resolve host:; Unknown error”

One of the configured repositories failed (Unknown),
and yum doesn’t have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work “fix” this:

 1. Contact the upstream for the repository and get them to fix the problem.

 2. Reconfigure the baseurl/etc. for the repository, to point to a working
    upstream. This is most often useful if you are using a newer
    distribution release than is supported by the repository (and the
    packages for the previous distribution release still work).

 3. Run the command with the repository temporarily disabled
        yum --disablerepo=<repoid> ...

 4. Disable the repository permanently, so yum won't use it by default. Yum
    will then just ignore the repository until you permanently enable it
    again or use --enablerepo for temporary usage:

        yum-config-manager --disable <repoid>
        subscription-manager repos --disable=<repoid>

 5. Configure the failing repository to be skipped, if it is unavailable.
    Note that yum will try to contact the repo. when it runs most commands,
    so will have to try and fail each time (and thus. yum will be be much
    slower). If it is a very temporary problem though, this is often a nice

        yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: ce-base/7/x86_64

can anyone point me to a direction?
i’ve already googled and tried diferents solutions but with no success.

Best Regards

Tiago Chaves

do your DNS solve any address like ?

1 Like

Sorry for the late reply,

Yes i can resolve that dns address from the machine.
I’ve tryed to replicate the problem from another machine with the same steps but everything works correctly. Gonna put this machine aside and when i got some spare time gonna investigate further.

Thanks for your experience. Did not have any issue installing CentOS last time i did it (on CentOS7).