Installing the Windows 4.x Dynamic Update Client (DUC)

If you have a dynamic IP address and you need to keep your host(s) or domain(s) up to date with your ever changing IP address you will need to either be using our Dynamic Update Client or a DDNS hardware device. This guide is going to show you how to setup the DUC for Windows 4.x and explain the additional Enhanced preference settings that are available.

You will need to first go to https://www.no-ip.com/download and download the Windows version of the DUC.

For this guide I used “Save File”

You’ll need to open your downloads folder and double-click on the “DUCsetup_v4_0_1.exe” icon. After double clicking on the file, you can choose to “Run” the installation process.

Read the License Agreement and, if you agree to the EULA and the TOS, click “I Agree”.

Now you are able to select where you wish to install it. The default installation directory will be used and created, if you do not need to make changes you can go ahead and select “Install”.

Once the installation has finished, you should see that the application has launched and it is now requiring you to enter in your No-IP.com account username and password. If you chose to not launch the program at the end of the installation process, we simply need to locate and launch the program. To launch, click on the “Start” button and then “All Programs”, find the “No-IP DUC” folder and expand it and click the “DUC” icon.

You will be prompted to login. Enter the credentials you used when you created your No-IP.com account. If you have not done so follow the Free Dynamic DNS Getting Started Guide.

When logging in for the first time you need to select the host or group that you would like to be associated with this client. Click on the “Edit Hosts” button.

This means that the host that you select will be updated with the public IP address of the network that the DUC is currently installed on. You can edit this any time after you save the settings by clicking “Edit Hosts” on the DUC v4.X.

Plus and Enhanced users can choose to create hostnames from the No-IP DUC interface.

After you have selected your hosts and saved your settings you should get three green check marks. Three green check marks means everything is working correctly and updating. Your host will now be updated if your IP address changes.

If you are not running the DUC and your IP address changes No-IP.com is unable to detect a change. You need to be sure your computer and DUC are running at all times if you want your host to always be updated to the correct IP address. One feature that will help insure that your DUC always starts is to go to “File” on the DUC and click “Preferences” then check “Start this application automatically when this user logs on”.

If you check “Enable as a system service” this feature will allow you to run the DUC prior to logging into your actual Windows account. This is a useful feature for users who do not leave their PC logged in at all times.

Checking “Use Alternative IP detection method” can help if your IP is not being detected correctly or it is detecting the wrong IP address. Along with “Use alternative IP detection method” is “Network Adapter”, it is best to leave this setting set to “Windows Default”, changing it can cause detection failing.

Some new features that were included in version 4.X are the “Enhanced” features. As the name is implied, this feature would require you to have a No-IP Enhanced or Plus subscription.

As shown here, the update interval for the DUC can be configured to your liking.

Video Tutorial :