Solve the NAT Type D Issue with AT&T’s Mobile Hotspot
AT&T mobile hotspots provide good on-the-go connectivity. The network coverage is plentiful and the speed is enough for most activities. But if you’re trying to play Nintendo Switch games online while connected to the AT&T mobile hotspot, you might encounter the NAT type D issue. This makes it virtually impossible to play online certain games.
However, Connectify has the perfect solution. See below how to fix Nintendo Switch NAT type issues with AT&T mobile hotspot devices.
Strict NAT, explained
Why your game console gets Strict NAT, and how Connectify Hotspot fixes the double NAT
Strict NAT is what breaks party chat, matchmaking and hosting. The usual cause is a console sitting behind two layers of address translation instead of one, and a PC hotspot in its default mode adds the second layer.
Your router already translates one public address into addresses for everything at home. When a PC shares a connection in the normal way, the PC translates a second time, and the console ends up two levels deep. Game services see a connection they cannot reach back into and report Strict NAT.
Bridging Mode stops the second translation. Devices on the hotspot get their addresses from the router instead of from the PC, so only one layer of translation remains and the console sits on the home network like anything plugged directly into the router.
MAX Bridging Mode is a MAX feature.
Bridging Mode removes the layer the PC adds. If the router itself sits behind another router, or the internet provider uses carrier-grade NAT, a second layer remains outside the house and the console can still report Strict NAT.
AT&T Mobile Hotspot Not Allowing Nintendo Switch Gameplay? Use Connectify
Network Address Translation (NAT) is a method used by routers to translate a public IP address (used on the Internet) into a private IP address (used on your home network) and vice versa. This is done for multiple purposes:
- to add security to the network by keeping the private IP addresses hidden from the Internet.
- to allow multiple devices to share a single IP address
In the world of gaming consoles, there are several NAT types that classify the connectivity they have to other players over the Internet:
- Open NAT (Type 1) – all is permitted – your gaming device can connect to anyone’s games and host games. Plus – other users will be able to find and connect to the games you are hosting. This is usually the case when your console is connected directly to the Internet with no router or firewall.
- Moderate NAT (Type 2) – your gaming console will be able to connect to other players, but some functions will be limited. When connecting to the Internet through a router that is configured properly, you’ll get this NAT type.
- Strict NAT (Type 3 or D) – your gaming device has limited connectivity with other players. Other players on a moderate or strict NAT will not be able to join your hosted games. Unfortunately, AT&T mobile hotspot devices deliver this kind of NAT type for all clients connected to it.
So, you’ll have the best gaming experience on your Nintendo Switch if you’re on an open NAT or at least a moderate NAT.
5 Steps to Fix Nintendo Switch Issues with AT&T Mobile Hotspot Devices
You will need a Windows PC or laptop to achieve this. As already explained in the Reddit discussion here, here’s what you have to do to solve the NAT type D issue with AT&T mobile hotspot devices:
- Download and install Connectify Hotspot on your PC.
- Get Speedify VPN on your PC as well.
- Open Speedify and connect to a server (usually the closest will be best). Have other connections to the Internet outside of your AT&T mobile hotspot? You can combine and use them at the same time with Speedify to create a super-connection with increased bandwidth and lower lag.
- Run Connectify Hotspot and share the Speedify virtual adapter via WiFi on your PC.
- Connect your Nintendo Switch to the Connectify WiFi network. Connectify will automatically fix any strict NAT type issues you may be having with your Nintendo Switch console. Even if it means having to bypass restricted ports.
Free, PRO or MAX
Which version of Connectify Hotspot you need
This setup needs Connectify Hotspot MAX. Connectify Hotspot's Repeater Mode and Bridging Mode are both MAX features, and this guide relies on both.
Recommended: MAX is the full version, so nothing in any other guide on this site is out of reach.
Available for Windows 10 and 11