Many data sources are behind firewalls that require Hex's IP addresses to be allowed (fka "whitelisted") to connect. Depending on your infrastructure, this often means editing your firewall configuration. As a starting point here are reference links for changing network settings for several cloud infrastructures: AWS, Azure, Google Cloud, and Snowflake
The centrally-hosted Hex Cloud application is served from the following addresses:
For single-tenant customers, contact email@example.com for the IP address you need to add to your allow-list.