1 Answers
He got the error since dns for the Virginia server had not propagated to the dns server his client uses. Even though he created the Virginia record first does not mean his dns server will be able to resolve it before the Tokyo record was created. Most likely he has that dns name pointing to a different IP address while creating the course. If he did all of that in less than 5 minutes then the TTL was the issue. He actually mentioned that i the course when he got the error page.