Follow these steps to configure 188.8.131.52:
Go to the IP address used to access your router's admin console in your browser.
Enter the router password.
Find the place in the admin console where DNS settings are set.
Take note of any IP addresses you might have and save them in a safe place in case you need to use them later.
Replace the existing addresses with:184.108.40.206.0.0.12606:4700:4700::11112606:4700:4700::1001
Save the updated settings.