Registering runners - status=couldn't execute POST against....

Summary

Hi I'm trying to register my runner but it's failing.

I ran the runner using those commands:

docker run -d --name gitlab-runner --restart always -v /var/run/docker.sock:/var/run/docker.sock -v /srv/gitlab-runner/config:/etc/gitlab-runner gitlab/gitlab-runner:latest

docker exec -it gitlab-runner gitlab-runner register

Reference used: https://gitlab.com/gitlab-org/gitlab-ci-multi-runner/blob/master/docs/install/docker.md

Error

ERROR: Registering runner... failed runner=6xxxxx status=couldn't execute POST against http://192.170.1.115/api/v4/runners: Post http://192.170.1.115/api/v4/runners: dial tcp 192.170.1.115:80: i/o timeout

Environment description

GitLab Enterprise Edition 9.0.0-ee f33774c