Support - No-IP Support Center
No-IP Plus FAQ 
How do I change my Domain Name System Server (DNS Server) information with Register.com?
Simply log into Account Manager using your username and password and select the domain name for which you wish to change DNS Servers. You will need to be prepared with the names of the No-IP DNS Servers - information provided to you when you purchased DNS services from No-IP.
Under the heading "DOMAIN NAME SYSTEM SERVERS (DNS SERVERS)" enter the DNS Servers No-IP has provided and click the Continue button. When the confirmation page appears, click Continue again and the DNS Server change will be implemented.
Please Note: DNS Server changes take between 24 and 72 hours (standard Internet propagation time) for the update to be completed globally.
Getting Started?
- We recommend you start with our Getting Started Guide which will walk you through all the basic steps to getting going with our service.
Still Need Help?
- Having trouble finding the answer you are looking for in our online support documents? First try our basic trouble shooting guide. If you still can't find the answer to your question feel free to open a Support Request or Contact Us.
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- If you believe a No-IP member's actions violate our Terms of Service, please inform us immediately at abuse@no-ip.com