How to change the IP Address on a ZTE ZXDSL531B router

This page shows how to change the LAN IP Address on the ZTE ZXDSL531B router.

Other ZTE ZXDSL531B 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 ZTE ZXDSL531B

To get started configuring the ZTE ZXDSL531B LAN page you need to login to your router. If you are already logged in you can skip this step.

To login to the ZTE ZXDSL531B, follow our ZTE ZXDSL531B Login Guide.

Change the LAN IP Address on a ZTE ZXDSL531B

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

After you log into the ZTE ZXDSL531B you are going to begin on the Summary page of this Router. When you need to change your LAN IP Address, the address of your Router that you can see from inside your network, click the choice on the left side bar labeled Advanced Setup, then LAN.

Configure the LAN section of your ZTE ZXDSL531B

This takes you to the correct page. Enter your new address you have chosen for your Router in the box labeled IP Address. A good address is

Be aware, that while you may change the IP Address, it is not recommended that you change the Subnet Mask. This should remain at

Make sure to save your changes before you exit.

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 ZTE ZXDSL531B Info

Don't forget about our other ZTE ZXDSL531B info that you might be interested in.

Rachel Bauer

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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.