fatal: unable to access 'http://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@mygitlab.com/project/': Failed to connect to mygitlab.com port 80: Host is unreachable

I'm running local CE and local Runner for CI. Runner is registered and uses latest docker image as environment.

I'm getting this error while trying to commit:

Running with gitlab-runner 11.6.1 (8d829975)
  on runner 19b160fc
Using Docker executor with image project/node5protractor:latest ...
Pulling docker image project/node5protractor:latest ...
Running on runner-19b160fc-project-42-concurrent-0 via runner...
Fetching changes...
Removing client-source/grunt/reports/
Removing history.zip
HEAD is now at ac25aa087 agent update
fatal: unable to access 'http://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@mygitlab.com/project/': Failed to connect to mygitlab.com port 80: Host is unreachable
ERROR: Job failed: exit code 1

I host two CentOS VMs - mygitlab.com for gitlab-ce and second VM for runner.

Also I added

[runners.docker]
    extra_hosts = ["mygitlab.com:192.168.11.23"]

to /etc/gitlab-runner/config.toml

But i get error

Failed to connect to mygitlab.com port 80: Host is unreachable

After restart docker on the runner the problem is solved,after some time the problem reappears.

From VM runner and from docker container mygitlab.com reachable.

Any ideas ?