ACME LetsEncrypt DNS Issues

[telnetnetwoks]

Hi All!
I am having some issues with my LetsEncrypt Certificate. The certificate works great, but I've been having issues with DNS resolution. I have my management interface set to only my management vlan(99). Whenever opnsense tries to resolve my hostname (r1.mydomain.com) it resolves to a different vlan. If I leave my browser to lead within about 1 min it will figure out that my web gui is tied to a different network and redirect me there. I know I can edit my host file on my computer, but is there any other way to change this setting within opnsense?
Screenshots attached below. Thank you!