Samba NT_STATUS_INVALID_PARAMETER with OpenVPN Share

Using OpenVPN with Samba 4 AD-DC. Am running into a problem where file shares open just fine when using an IP Address to the server however when using a domain name (A Record) it fails. In the end I am hoping to access the server using the domain \\[login to view URL]\ and be able to open files and folders inside shares as normal. It is important that we resolve this via a screen share. I can do a zoom screen share and record the solution. This is a LIVE client server I have created a video to assist with your understanding of the problem. Please confirm you have seen it. * [login to view URL] Thank you!