Technical Tip: Captive Portal Registration Failed to detect a Change in the network Settings after Registration

When  the following error is seen 'Failed to detect a Change in Your network Settings, Retrying...' after the guest device was successfully authenticated/registered to the network via the registration portal.

Try checking the below settings:

1) Is the following URL accessible from the production VLAN 'http://www.google.com/images/srpr/logo11w.png'

2) Are there any firewall rules that prevent 'HTTP' from being accessed in the Isolation or production network?

3) Resolution for 'Failed to detect a change in your network settings' error after redirection to production VLAN:

Modify to the script entered in Portal - > Portal Configuration - > Registration - > Success:

Change

var detectionTimeoutSeconds = 15,

TO

var detectionTimeoutSeconds = 160,

4) Save the config and Retest.

Note: The above settings, will not be applied in case the device was in the remediation portal.

As a work around for remediated Guest devices one can modify the captive portal page to tell the user to close the browser and reopen it after the timer expires.