To make sure xCloud can connect with your servers, you need to allow xCloud’s IP addresses (IPv4, IPv6) at your service providers. This is crucial, especially if your provider uses a firewall or has strict API access controls.

For whitelisting xCloud IP addresses, you need to head to your firewall setup and allow xCloud IP addresses to your whitelist.

DigitalOcean and Vultr #

After adding your API keys to xCloud, creating new servers should usually work smoothly. However, if you have set up a cloud firewall on DigitalOcean or Vultr, you might need to whitelist our IP addresses to successfully start a server. 

Recommended articles from each provider for details on configuring their firewalls are below:

DigitalOcean: https://www.digitalocean.com/docs/networking/firewalls/how-to/

Vultr: https://www.vultr.com/docs/vultr-firewall-quickstart-guide

Remember, at Vultr, you also need to allow the xCloud IPs under the API Access Control by navigating the Account → API field. Simply click on the Allow All IPv4, IPv6 box.

Find Vultr API here: https://my.vultr.com/settings/#settingsapi