It's easier to solve than you think
HOW TO FIX – Server IP/DNS address could not be found
If you use Google Chrome as your primary browser, you may have encountered the error “Server IP address could not be found.” When this error occurs, you are unable to access your sites because your browser simply does not allow it.
Several network issues can cause Chrome to display the above error message. Once you resolve these underlying issues, Chrome will work as it should and allow you to access your websites.
Before you follow the methods below, make sure that your error message is appearing for all sites and not just for a specific site. If the problem is only occurring for a specific site, then that site might be experiencing issues. If not, then follow the methods below.