docker - ERROR: Registering runner. forbidden (check registration token) -

i'm trying configure new runner gitlab ci , keep getting error

error: registering runner... forbidden (check registration token) runner=4pzd2efb
panic: failed register runner. perhaps having network problems

this command run

gitlab-ci-multi-runner register    please enter gitlab-ci coordinator url (e.g. https://gitlab.com/ci):     https://gitlab.com/ci     please enter gitlab-ci token runner:     xxxxxxxxxxxx     please enter gitlab-ci description runner:     [gitlab-test]: runner     please enter gitlab-ci tags runner (comma separated):     docker 

it happens when run command

sudo gitlab-runner register 

with same parameters.

any advice on how solve appreciated!

this arise multitude of reasons. gitlab instance running on gitlab.com?

could post last few lines of logs mention above problem - can these admin panel -> logs -> production.log.

a simple network test try hitting coordinator url using wgets terminal tried install runner. might not have localhost loopback configured properly.

if wgets doesn't return 200 status code add/check localhost loopback:

in /etc/hosts file should be

127.0.0.1 localhost

other potential problems and/or solutions depend on logs say...