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- Configure your setup to allow connection to GitLab servers. If connection to GitLab servers is not possible, contact your Sales Representative to request a license key. You can also contact [GitLab support](https://about.gitlab.com/support/#contact-support) if you need help finding your Sales Representative.
- **Customers Portal is not operational**:
- To check for performance or service disruptions, check the Customers Portal [status](https://status.gitlab.com/).
- **Firewall settings**:
- Check if your GitLab instance has an encrypted connection to `customers.gitlab.com` (with IP addresses 172.64.146.11 and 104.18.41.245) on port 443:
```shell
curl --verbose "https://customers.gitlab.com/"
```
- If the curl command returns a failure, either:
- [Configure a proxy](https://docs.gitlab.com/omnibus/settings/environment-variables.html) in `gitlab.rb` to point to your server.
- Contact your network administrator to make changes to the proxy.
- If an SSL inspection appliance is used, you must add the appliance's root CA certificate to `/etc/gitlab/trusted-certs` on the server, then run `gitlab-ctl reconfigure`.