The DNS system is responsible for allowing users to connect to online resources via the use of domain names. Commonly, your default DNS settings are provided by your ISP.
Certain connection issues are caused by the unavailability of your default DNS, firewall restrictions, or cache stored by the default DNS.
By switching your DNS settings you can resolve the aforementioned issues.
Important: changing the default DNS settings isn’t recommended for inexperienced users.
As an alternative to a default DNS, we suggest using Google Public DNS. Instructions on how to configure it can be found on their official page.