WHM DNS Settings

Hi Everyone,

I'm at my final attempt with the situation I'm in... I have a domain name hosted at MediaTemple which I use as my nameservers for a handful of clients: /http://www.necreative.net] (ns1.necreative.net & ns2.necreative.net).

I have ns1 pointing to one of my servers IP's (178.63.100.216) and ns2 pointing to the other (178.63.100.232).

As far as I know everything seems to be working fine with the .co.uk domain names but when I come to change the nameservers to a .com on 123-Reg (This is where I purchase and hold my domains) I get an error:

"Failed to Modify Domain Nameservers: Nameserver not found at registry"

I don't know where I am going wrong, I don't do many websites with my work as I'm an editorial designer...

I've attached a few screenshots of my settings on necreative.net, a .co.uk of a domain that's working with the ns1 & ns2.necreative.net and my config of my WHM server (not sure if you'd need more).

If anybody could help with this I'd be really appreciative, I'm about to pull my hair out as I've been reading hundreds of different articles, I've contacted 123-reg who said I needed to contact media temple and have them set glue records (which I did) but still not able to add the nameservers!

Thanks


P.S If there's an easier way to be doing this I am open to suggestions too!