Problem: A windows 7 computer cannot join domain. It says “the network path was not found”. All other computers can join the Domain with no problems.

Solutions:

I have searched online, none of the following suggestions works.

• Check the DNS is pointed to domain controller.
• Make sure  the TCP/IP NetBIOS Helper Service is running on the client computer
• Disable firewall, or uninstall antivirus software.

It turns out that the client for Microsoft Networks has to be installed and checked.