How To: Fix "This site can't be reached" for Cisco Secure Client (AnyConnect) VPN on Android

The Cisco Secure Client uses SAML SSO for authentication, which prompts a browser to open. After logging in, the browser window should close and you should be connected to the VPN. However, some Android devices may see the below error:

 

"This site can't be reached. localhost refused to connect"

Uploaded Image (Thumbnail)

 

This can be fixed by clearing the cache of your default browser. After clearing browser cache, try connecting to the VPN again.

To see default browser on Android:

  1. On your Android device, open Settings.
  2. Tap Apps. 
  3. Under “General,” tap Default apps or Choose default apps.
  4. Tap Browser app.

Delete Chrome Browser cache:

  1. Open the Chrome app on your Android device.
  2. Tap More at the top right.
  3. Tap History, then Clear Browsing Data.
  4. Choose a time range. To remove everything, select All time.
  5. Ensure Cookies and site data and Cached Images and Files are checked.
  6. Tap Clear data to confirm.

Delete Firefox Browser cache:

  1. Open the Firefox app on your Android device.
  2. Tap the menu, then select Settings.
  3. Tap Delete browsing data. Ensure Cached images and files is checked.
  4. Tap Delete browsing data to confirm.

Delete Edge Browser cache:

  1. Open the Microsoft Edge app on your Android device.
  2. Tap on the three dots at the bottom of the screen to open the menu, then tap “Settings.”
  3. Tap on “Privacy and security.”
  4. Tap on “Clear browsing data.”
  5. Choose the time range for which you want to clear cache. To delete all cache, select “All time.”
  6. Check “Cached images and files.”
  7. Tap on “Clear” to execute the clearing process.
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