My org (before I got here) created an AD infrastructure whose internal name is same as it's external (mycompany.com). I have 2 internal DNS servers (DNS1, DNS2) and they are AD-Integrated.
Recently, our marketing dept created a new website. Occasionally, for some reason, internally we get directed to our old website. Externally, it works fine. I will say that most times it does work. But, a few times a week it doesn't. What am I missing here that I need to add to my internal DNS, if anything?