UniFi - Does the controller need to be running at all times?

Answer


UniFi APs can run by themselves without the controller unless features like guest portal is enabled (as UniFi controller also functions as a captive portal). Restarting the controller won't restart your APs.

The controller is not required if you are only using "Guest Policy" with "Guest Portal" disabled.

Guest Policy = traffic shaping, client isolation via restricted subnets and Guest Portal (if enabled)

Guest Portal = the captive portal/landing page

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