Adding Windows 7 Pro PC to Domain

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Adding Windows 7 Pro PC to Domain

Hello, I manage 1 domain on Server 2003 and have a 2nd domain on SBS 2011 Standard. I can add XP Pro machines to the 2nd domain without an issue and all shares are accessible.

When I take the Windows 7 machines off the 1st domain to put them on the 2nd domain, I get the network credential window, but I receive the following error- "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."

I've tried manually adding the DNS entry to the host file on each PC, directing the IPv4 DNS settings to both the 1st domain DC and the 2nd domain DNS/DC, and adjusting the Local Security Policy network authentication settings. None of the solutions have worked.

Does anyone know of another fix?

Any help is greatly appreciated!

Thank you,