How to change the IP Address on a NetComm 3G42WT router

This page shows how to change the LAN IP Address on the NetComm 3G42WT router.

Other NetComm 3G42WT Guides

What is the LAN IP Address of a Router

The LAN IP Address of a router is also known as its internal IP address. It is also the IP address that you connect to when you want to configure your router. It is only useful from inside your network and has no use from the Internet side.

Routers have 2 IP addresses: an internal ip address and an external ip address. The external IP address is assigned to you by your Internet Service Provider, or ISP, and is generally not something that you can change. The internal IP address is set to a default value at the factory but can be changed if you want.

Common internal IP addresses for routers are:

It is generally a good idea to make the last number of your router's internal IP address a '1', as in or This is not necessary, but many people do it and it makes it a bit easier to remember which IP address is assigned to your router. If you want to change the internal IP address of your router, this guide shows you how.

Login To The NetComm 3G42WT

To get started configuring the NetComm 3G42WT LAN page you need to login to your router. If you are already logged in you can skip this step.

To login to the NetComm 3G42WT, follow our NetComm 3G42WT Login Guide.

Change the LAN IP Address on a NetComm 3G42WT

If you followed our login guide above then you should see this screen.

After you've logged into the NetComm 3G42WT router you'll be taken to the Home page. To change your IP address click the Advanced tab near the top of the page.

Configure the LAN section of your NetComm 3G42WT

This takes you to a new page.

This page offers the option to change your IP Address. Not sure what to change it to? One good option to try is

Just beneath that is the option to change your Subnet Mask. Leave this as it is. It needs to stay at

Congratulations! That's there is to it. Just be sure to click Save/Reboot before closing the page.

Possible Problems when Changing your LAN IP Address

When you change your LAN IP Address you are making a fundamental change to how your network functions and all computers on your network will be affected. You will lose your Internet connection when you apply these changes. Your router may reboot and require a couple of minutes to start responding again.

Also note that some computers may need to be rebooted after you make this change before they can talk to the router or on the Internet again.

Other NetComm 3G42WT Info

Don't forget about our other NetComm 3G42WT info that you might be interested in.

Rachel Bauer

Written by

Rachel Bauer is an owner and primary author for She is available on Google+ and you can find more of her articles in the Networking section of our site.