[ATP/FLEX] Why can't the captive portal page pop up automatically on the client?

Zyxel_Jeff

Question :

Why can't the captive portal page pop up automatically on the client?

Answer :

Normally, this issue occurs because the HTTP requests sent by the client during the connectivity check process are not handled properly after the client obtains a DHCP-assigned IP address, resulting in the server responding with an HTTP/1.1 400 Bad Request to the LAN clients.

To resolve this issue, please follow the steps below:

(1). Enable HTTP and set the port to 80.

(2). Disable "Enable Session Page" under Web Authentication.