Hi @Not4sale,
Sorry for the inconvenience caused. Please let us know whether the Wi-Fi network which shows not secure is your home network or open network and also check if the same network is shown secure from your iPhone.
If it is an home network kindly, try to disconnect the Wi-Fi, forget the network and add it again. Also uninstall & reinstall McAfee application and check if the issue persists.
You can use the below link to follow the steps to install McAfee on your device
How to install McAfee
If issue still persists, we request you to contact our support team using the below link
McAfee Support
Alternatively, if you are from USA or Canada, you can contact McAfee support team using the number +1 866 622 3911
Regards,
Allwyn I