Double NAT explained

Double NAT (Network Address Translation) usually happens when your have two routers connected one behind the other, like this:


Let’s say for example that you have a router or a gateway from your internet service provider as well as a Nokia WiFi Beacon. This could create a problem when you need devices connected to different routers to communicate with each other because they are actually on different networks.

Let’s imagine you want to check on your home’s security cameras in your backyard. In a situation when you have two routers, your laptop might be connected to router 1 and the security cameras to router 2. If both networks are private, then your laptop and security cameras may not be able to communicate with each other, so you can’t see what’s going on. Not ideal!

Another issue could arise if you have a gaming device connected to router 2 and you want to play an online game. The two network address translations may again cause problems.

How to fix a Double NAT problem

Let’s look at the two scenarios that can cause a Double NAT problem.

  1. You have a simple modem and two routers; one router is your root Nokia WiFi Beacon and another one usually provided by your ISP. In this case, you can remove the router from your ISP completely from your network! Switch it off and disconnect it from the modem. Then, plug your root Nokia WiFi Beacon into the modem. Now you have only one main router and only one personal network.

  2. You have a gateway from a 3rd party and a root Nokia WiFi Beacon. In this case, you can simply enable bridge mode on your Nokia WiFi Beacon to address the double NAT issue.