HTTPS. Also, do not expose the WP810 web UI access to public network for normal usage.
• Use HTTPS for firmware downloading and config file downloading
Use HTTPS for firmware downloading and provisioning. Besides that, set up username and password
for the HTTP/HTTPS server to require authentication. It’s also recommended to turn on “Validate Server
Certificates” so the WP810 will validate server certificate when downloading the firmware or config file.