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The Cisco Meraki dashboard has the option to test RADIUS Settings configuration. The , but it is not possible because the parameters username & password are not connected with SOCIFI's databases. And the test returns "Access denied" due to parameters username & password don't exist in SOCIFI's databases.
Solution
Test the configuration on SOCIFI Captive Portal. Please follow the steps at https://socifi-doc.atlassian.net/wiki/x/nwBiAQ