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"error": "invalid_grant", "error_description"

1.  {"error": "invalid_grant", "error_description": "Invalid redirect URI ’http://IP/ezlogin/index.php/auth/check_duo’."}

 

2.  An Error Was Encountered  

 

If you get the above errors on accessing Ezeelogin GUI while using the DUO, make sure to access the Ezeelogin GUI with the Domain name and SSL(HTTPS) as shown below.