How to set up DDNS (Dyndns) of TP-Link cable modem routers(Blue UI)

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Updated 06-16-2017 07:40:17 AM 15444
This Article Applies to: 

Most ISPs (Internet service providers) assign a dynamic IP address to the router and you can use this IP address to access your router remotely. However, the IP address can change any time and you don’t know when it changes. In this case, you might need the DDNS (Dynamic Domain Name Server) feature on the router to allow you and your friends to access your router and local servers (FTP, HTTP, etc.) using domain name, in no need of checking and remembering the IP address.

Note: DDNS does not work if the ISP assigns a private WAN IP address (such as 192.168.1.x) to the router.


Follow the steps below.

Note: Archer CR700 is used for demonstration in this article.

Step 1

Please refer to How to log into the web-based management interface of Archer CR700?


Step 2

Go to Advanced > NetworkDynamic DNS. Select the DDNS service provider Dyndns.

If you DO have account from, please skip to Step 12. Otherwise, please follow these steps for how to create account.


Step 3

Please go to, and you´ll see the main page popped up.

Step 4

Select SIGN IN on the top of the menu.  Then click on My DynDNS Account on the right hand side.

Step 5

Type in your information then click on Create Account.


Step 6

Check your email box and fill in your Confirmation Code

Step 7

Click on CONTINUE.


Step 8

Then go to this page and click on My Services.


Step 9

Click on Add Hostname.


Step 10

Type in the Hostname whatever you want. Click on Add To Cart.


Step 11

You need to pay for this Hostname, then you can get it.





Step 12

Enter the Username, Password and Domain Name you created on Dyndns website and click Save.



After you go through all the steps above, the DDNS should be working properly.



If you want to use a new DDNS account, please log out first, then log in with the new account.


Get to know more details of each function and configuration please go to Download Center to download the manual of your product.


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