To change your settings:
1.
Launch a web browser from a computer or WiFi device that is connected to the network.
2.
Enter http://www.routerlogin.net.
A login window opens.
3.
Enter the router user name and password.
The user name is admin. The default password is password. The user name and password are case-sensitive.
The BASIC Home page displays.
4.
Select ADVANCED > Advanced Setup > Dynamic DNS.
The Dynamic DNS page displays.
5.
Change your DDNS account settings as necessary.
6.
Click the Apply button.
Your settings are saved.
Use Dynamic DNS to Access USB Storage Devices Through the Internet
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Nighthawk X4S AC2600 Smart WiFi Router