Troubleshooting Captive Portal

Configuration guides, troubleshooting and practical advice for AZTCOFW.

Articles

5 results

Apple devices are unable to load the portal page or login

Certain versions of Safari on iOS do not properly handle the login form for the Captive Portal page. The most common resolution is to disable autofill for forms in Safari on iOS. In some cases, Apple devices will not aut

Authentication failures

Authentication failures are normally the result of users entering an incorrect username or password. In the case of RADIUS authentication, these can occur because of connectivity problems to the configured RADIUS server(

Captive Portal Does not Redirect

If clients are not being redirected to the portal page when attempting to browse on an interface with captive portal enabled, it’s most always one of the following causes: DNS resolution not functioning Clients on the ca

Captive Portal Rules

Captive Portal uses ipfw under the hood. ipfw is a program performing packet filtering. When having issues with the captive portal, it is possible to list ipfw rules for debugging. To list all ipfw rules, which includes

Port Forwards Behind Portal Only Work When Target Logs In

This is a side effect of how the portal operates. No traffic is allowed to reach a host behind the portal unless it has been authenticated or passed through the portal. If a port forward must always work to a device behi