How Can I Get WPMU Site to resolve to Domain Name and not IP Address?

Being relatively new to Wordpress MultiSite, I'm trying to wrap my mind around how to get my site to resolve to a domain name rather than an IP Address.

When I created the WPMS Network, I must have entered in the IP Address xx.xx.xx.xx and I already have the DNS Records showing up (e.g. when I do a DIG and when I type in the domain name into a browser, it resolves... but to the IP Address).

What did I setup incorrectly here?
TessandoIT AdministratorAsked:
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Shaun VermaakTechnical SpecialistCommented:
Your site settings in the WPM sites must point to DNS, not the IP. Your WPM must be able to resolve the DNS to correct IP
TessandoIT AdministratorAuthor Commented:
Thank you Shaun - This must have been setup during installation. What I'm left with is this view, showing the URL as an IP Address for the "network site" hub:

And when I attempt to edit this in the Dashboard, it seems that the IP Address is hard coded:

Is there a way to change this through a configuration file? How would you recommend changing this to DNS (e.g. a Domain Name)?

Thanks for your knowledge. I appreciate it.

Shaun VermaakTechnical SpecialistCommented:
Probably in the database

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TessandoIT AdministratorAuthor Commented:
I changed the properties in the Database for "Site URL" and "Home" to the domain name. It broke the login, as expected but even after restarting Apache its not coming up again. This might have not been a good choice on my part. Perhaps there is another location that needs to be changed. I will keep digging.
Shaun VermaakTechnical SpecialistCommented:
Will also check
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