It can also be a problem with gerrit itself. Even if everything seems to be already setup, all access is added, but still you're receiving info Could not connect to gerrit you can try to manually add repo by:
git remote add gerrit ssh://usernam@review.openstack.org:29418/openstack/project.git

It can also be a problem with gerrit itself. Even if everything seems to be already setup, all access is added, but still you're receiving info Could not connect to gerrit you can try to manually add repo by:
git remote add gerrit ssh://usernam@review.openstack.org:29418/openstack/project.git