[RT-AC3100] - asuscomm.com DDNS Exclamation Point!

I am not home so I cannot post a screen grab right now but I recently upgraded from a RT-AC68U to a RT-AC3100 (not the RT-AC88U to be clear). I copied my settings from one router to the other just fine but I have an exclamation point ! on the <mydomainname>.asuscomm.com DDNS telling me that it is already in use on another router even though it works fine for port forwarding and the other router is now an AiMesh Node.

Is there a way to disable this warning?

TIA