So we have a hosting company that host our website. The ip address/dns name stays the same.
DNS internally and externally for the website www.test.com
is the same. I check our internal dns and we have an A record for it.
Ping response shows the same ip address. Everything match up. The website works fine externally but resort to test.com instead of www.test.com
This was a wordpress migration, just basically a wordpress theme migration, but same URL and all that. The wordpress migration was done on the same server
I check everything, all I can think of now is wordpress issues.