Here is how to update your name servers at Register.com. Tutorial assumes you have a domain name registered through Register.com, and starts from their home page.
This tutorial assumes you have a domain name registered through Register, and starts from their home page.
Click "Log In" to sign in to your account.
Enter your User Name and Password to login.
In your Account Dashboard, hover over the Domains icon...
... then click "Manage".
Click the "Manage" link next to the domain you want to update.
Then in the Domain Name System Servers section, enter your new name servers.
Click "Continue" to confirm the change.
That's it! The domain name's name servers have been updated.
Please note that it could take up to 24 hours for your new nameservers to propagate and be recognized across the internet.