The Splash Page is not triggered when iOS devices connect to WiFi

Owned by Support
Last updated: May 20, 2016
2 min read

Summary

Some iOS devices are not redirected to the Captive Portal when the user gets connected to WiFi network with iOS device. 

The Captive Portal is not triggered automatically when is the testing domain accessible. If the testing domain is not accessible, CNA (Captive Network Assistant) popup is shown.

How iOS determine if it has an Internet Connection

  1.  The iOS and Mac OS X devices check for the following domains which are hosted on Akamai network:
    captive.apple.com
    www.airport.us
    www.thinkdifferent.us
    and other domains used for this purpose by Apple
     

  2.  If the domain is accessible and returns "Success", the Captive Portal is not triggered automatically. "Success" response means the device is connected to the internet.

How to test it on iOS

Make sure you have no active internet session. If yes, wait until your active session expires.

  1.  Check Auto-Join and Auto-Login settings
    1. Launch the Settings app on your iPhone or iPad.
    2. Tap on Wi-Fi
    3. Tap on the info button next to the network name.
    4. Turn Auto-Join and Auto-Login on

      See the article at https://support.apple.com/en-us/HT204497 for more information
  2.  Forget a Wi-Fi network
    1. Launch the Settings app on your iPhone or iPad.
    2. Tap on Wi-Fi.
    3. Tap on the info button next to the network name.
    4. Tap on Forget This Network. 

      See the article at http://www.imore.com/how-forget-wi-fi-network-your-iphone-or-ipad for more information

  3. Connect to your WiFi network (hotspot registered at SOCIFI Dashboard)

  4. Do not connect through SOCIFI Captive Portal

  5. Open regular Safari browser and enter the "captive.apple.com" to the URL

  6. If you get the "Success", the Apple's domain is accessible

Solution

  1.  Forget a Wi-Fi network
    1. Launch the Settings app on your iPhone or iPad.
    2. Tap on Wi-Fi.
    3. Tap on the info button next to the network name.
    4. Tap on Forget This Network. 

      See the article at http://www.imore.com/how-forget-wi-fi-network-your-iphone-or-ipad for more information
  2. Restart you iOS Device. Based on our experiences, restarting the iOS device should resolve the issue with CNA (Captive Network Assistant)
  3. Check your Walled Garden settings or your Firewall Policy.The akamaihd.net and akamai.net domains and IP addresses have to be inaccessible to unauthenticated users

We are looking forward to your inputs and thoughts. Thank you for letting us know about your improvements.