Being the most widely-used browser means that each error connected with Google Chrome will affect a massive subset of users. If the specific issue that is causing problems is the 'ERR_NAME_NOT_RESOLVED' Google Chrome error, it most likely indicates that there is a DNS resolution problem. DNS (Domain Name System) is an essential part of the Internet that is tasked with a very important job - it translates hostnames (the name that people use to reach a certain website) to IP addresses (the actual address of the website). An example of an IP address is 248.59.53.110, imagine having to remember several such addresses just to be able to open a couple of websites. One possible solution for the 'ERR_NAME_NOT_RESOLVED' Google Chrome error, in that case, is to manually switch your default DNS server to the public DNS service provided by Google themselves.
If that doesn't help, users could try to clear their browsing data, as that is another common cause for the appearance of this particular error. To do so, navigate to the 'Settings' menu of Google Chrome, select 'More tools', and then go to 'Clear browsing data...'. Select the types of data stored in the Google Chrome data cache that you want to be removed. Make sure that at least 'Cookies and other site data' is selected.
Clearing Chrome's Host cache also could help in resolving the 'ERR_NAME_NOT_RESOLVED' Google Chrome error. First, you need to open an Incognito window in the browser. Then paste the following address in the address bar - 'chrome://net-internals/#dns' and press Enter. All that is left then is to find the 'Clear host cache' button and click on it.