Enable Portal Page on the Open SSID and Enforces the Preauthentication ACL

  1. On the WLC, go to WLANs and Edit the open SSID.
  2. Open the Security > Layer 3 tabs.
  3. Check the Web Policy box.
  4. Select the Authentication option.
  5. In the Preauthentication ACL field, select the open SSID.