# Troubleshooting issues on Google Cloud This is an incomplete list of issues people have run into when running TLJH on Google Cloud, and how they have fixed them! ## 'Connection Refused' error after restarting server If you restarted your server from the Google Cloud console & then try to access your JupyterHub from a browser, you might get a **Connection Refused** error. This is most likely because the **External IP** of your server has changed. Check the **External IP** in the [Google Cloud Console -> Compute Engine -> VM instances](https://console.cloud.google.com/compute/instances) screen matches the IP you are trying to access. If you have a domain name pointing to the IP address, you might have to change it to point to the new correct IP. You can prevent External IP changes by [reserving the static IP](https://cloud.google.com/compute/docs/ip-addresses/reserve-static-external-ip-address#promote_ephemeral_ip) your server is using.