The most common cause for this is when your computer is unable to connect to the internet, or your DNS servers are down. If you’ve recently changed or updated your DNS server and your device(s) aren’t connecting properly, ERR_NAME_NOT_RESOLVED might occur.
Why do I keep getting Err_name_not_resolved?
In a nutshell, the ERR_NAME_NOT_RESOLVED error means that the operating system or the app cannot convert a DNS address to the correct IP address. In other words, when you type “google.com” into a browser, DNS “translates” google.com to an IP address and then locates and connects to a website.
