It’s easy with Safe Surfer to install an effective porn blocker on a Netcomm NB604N modem. Along with protecting your privacy, we also use our own behind-the-scenes technology to block porn and other harmful online content. This guide will efficiently walk you through how to install protection.
Step 1: Install DNS
Enter the address 192.168.1.1 into the top search bar of a web browser (such as Google Chrome or Firefox).
![](/uploads/safesurfer-netcommnb604n-guide1.png)
Type admin into the username box, and admin into the password box. Click the “Sign in” button.
![](/uploads/safesurfer-netcommnb604n-guide2.png)
Click the Advanced Setup menu.
![](/uploads/safesurfer-netcommnb604n-guide3.png)
Click the DNS menu. Click the button found next to “Use the following Static DNS IP address”.
- For “Primary DNS server”, copy and paste the following address into the text box: 104.197.28.121
- For “Secondary DNS server”, copy and paste the following address into the text box: 104.155.237.225
Click the Apply/Save button. Once the changes have been saved, you can close out of the window.
![](/uploads/safesurfer-netcommnb604n-guide4.png)
Verify the protection installation by visiting ExampleAdultSite.com inside a web browser. This is a safe website designated for testing if pornographic websites are being blocked. This site should be blocked.
Step 2: Sync IP (optional)
The Safe Surfer dashboard gives you access to comprehensive parental controls. The dashboard has a feature where you can create custom block rules for your Netcomm modem.
Pro tip: this feature requires a Pro Surfer subscription and works best when you have a “static IP” (that is, a non-changing public IP address) with your Internet service provider. If you would like to use the sync IP feature rather than downloading our easy-to-use apps or getting a Wi-Fi Lifeguard router, contact your ISP regarding how to get a static IP.
Open the Devices menu (found on the left-hand sidebar) on the Safe Surfer dashboard. Click the “+ New Device” button.
![](/uploads/safesurfer-genericrouter-newdevice.png)
Click Wi-Fi & network > Use my existing router. Enter a name, then click the Accept button.
![](/uploads/safesurfer-genericrouter-inst5.png)
Go back to the Devices menu and click the Connect button found under the device listing just made.
![](/uploads/safesurfer-genericrouter-inst6.png)
Click the Plain DNS field, then click the Link button. This will sync any custom block settings.
![](/uploads/safesurfer-genericrouter-inst7.png)
You can now open the Blocking menu, select the router device from the blue bubble, and block categories. Click the Save button once you’re done. These changes might take a minute to sync over.
![](/uploads/safesurfer-genericrouter-inst8.png)
Protection complete
Great work! The devices connected to this home router should now be protected. Visit our easy-to-use online dashboard to start monitoring traffic and blocking content from our premium categories with an affordable Pro Surfer subscription.
If you would like to protect a different kind of device, visit our Guides page.
Disclaimer: Safe Surfer Limited is in no way associated with NetComm Wireless PTY LTD.