Note: For a sensor to report test results and upload packet captures, a sensor must be configured to test at least one network with external connectivity or connected over an unrestricted ethernet connection. More information on the specific URLs to allow can be found here.
External connectivity testing can be disabled on any specified SSID (or alias). Toggling this will disable testing, errors, and notifications related to external connectivity.
This is helpful for networks where external connectivity to the internet is not supported.
Find this in the advanced section of Network settings.