How to Deal with Network/Firewalls Stopping Topics from Rendering

If you're experiencing problems accessing some features of the platform such as

  • Content not loading
  • Errors when using assessments

It is possible your internal network or firewall settings are blocking certain domains our platform relies on.

This is particularly common in environments with strict security policies or organisations with firewalls such as Securly, Windows Defender, McAfee, Symantec etc set to have high firewall security settings.

Why This Happens

Our platform uses separate subdomains for different services.

Some firewall or content filtering systems treat subdomains differently and may block these API requests by default, especially if they're not explicitly whitelisted.

What You Need to Do

To ensure the platform works correctly, you’ll need to ask your IT team (or network administrator) to whitelist the following domains in your firewall or content filter:

*.pass.tech

If your system doesn’t support wildcard domains, please whitelist these specific subdomains:

  • api.pass.tech
  • content.api.pass.tech
  • provider.api.pass.tech
  • student.api.pass.tech
  • cdn-app.pass.tech

This allows the necessary data and content to load across the platform.

Additional Notes for IT Teams

  • Ensure both HTTP (port 80) and HTTPS (port 443) traffic is allowed for these domains.
  • If using Securly or similar filters, double-check there are no policy rules preventing access to subdomains.
  • If running any endpoint protection (e.g. Windows Defender, Sophos, etc.), verify that these domains are not being flagged or blocked.

Still Having Trouble?

If you're unsure how to do this or continue to experience issues after updating your firewall settings, please contact our support team at providers@pass.tech with as much detail as possible, including:

  • The name of your organisation
  • A description of the issue
  • Any error messages you’re seeing
  • A screenshot, if available

We're happy to help get things running smoothly!

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