If you encounter the following message while attempting to use Wi-Fi:

"Error Opening Page - Hotspot login cannot open the page because it could not establish a secure connection to the server"

This indicates that you are trying to access a domain that is not included in the Walled Garden whitelist.

Understanding the Issue

When users attempt to connect to the Wi-Fi network, they are redirected to a captive portal to authenticate before accessing the internet. This setup is designed to prevent users from reaching any web pages without first logging into the network. The captive portal restricts access to a select list of domains contained in the Walled Garden whitelist, allowing only specific sites, such as the Purple splash page servers, to be accessed.

During the loading of the splash page, several domains are accessed in the background. If one of these domains is not on the whitelist, the connection error you see will occur.

Resolution Steps

To resolve this issue, please take the following actions:

1. Check the Controller Verify that the Walled Garden whitelist is up to date. This may require access to the controller management interface.

2. Domain List: To see a list of the domains that are necessary for your hardware, please refer to the Walled Garden Domain Whitelist documentation.

By ensuring that all required domains are included in the Walled Garden whitelist, you can prevent connection errors and improve the user experience on your Wi-Fi network.