“Failed to join domain” trying to add Windows 2008 R2 Core to domain

Today I was using SCONFIG (if you don’t know what SCONFIG is, check out these posts to add a Windows 2008 R2 core server to an existing domain. I had set the IP address and ensured that the domain name and credentials are correct, but I kept getting ‘failed to join domain’. I tried pre-creating…

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