Cannot add Windows 7 PC to domain: What should I do?

Lately many people have complained about getting and error that states: “An attempt to resolve the DNS name of a DC in the domain being joined has failed. Please verify this client is configured to reach a DNS server that can resolve DNS names in the target domain.” This error usually comes up when you are adding a computer to a domain controller right after you have entered the username and password of the account allowed to join the domain. Why this error is confusing is that because you are able to enter the username and password of a user you already know your computer has verified there is a domain controller on your network and has communicated with it. While some say they only get this error with Windows 7, the problems does happen for Vista and Windows XP. Read more