Resolved: An attempt to resolve the DNS name of a domain controller 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.

Environment Detail:

A friend of mine was trying to join a Windows server 2012 R2 Machine to Active Directory but was getting failed with the following error.

Error: 

The following error occurred attempting to join the domain "mydomain.com":

An attempt to resolve the DNS name of a domain controller 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. For information about network troubleshooting, see windows Help.

Troubleshooting:

Tried enough to troubleshooting, check network , ports, Active directory, DNS but no luck, at last the following solution, resolved this issue.

Solution:

Go to the properties of the network card--->internet protocol Version 4(TCP/IPv4)--->Properties---->Advanced--->DNS tab---->select Append these DNS suffixes (in order): and enter the name of the domain (mydomain.com) and click to save the changes.

Further findings:

The Active directory domain name (mydomain.com), is the same name (mydomain.com) as the website of the company accessible on internet. 

The client machine has internet access.