How to Fix It When Teredo Is Unable to Qualify GA S REGULAR Menu Lifewire Tech for Humans Newsletter! Search Close GO Gaming > Consoles & PCs
How to Fix It When Teredo Is Unable to Qualify
Get back to enjoying multiplayer gaming on Xbox
By Daniel Anglin Seitz Daniel Anglin Seitz Writer University of Vermont, Emerson College Dan Seitz is a tech writer with 10 years of experience writing about apps, gaming, and more. His work has appeared on Uproxx.com and other outlets. lifewire's editorial guidelines Updated on June 12, 2020 Tweet Share Email Tweet Share Email In This Article
Expand Jump to a Section What Is Teredo What Does 'Teredo Is Unable to Qualify' Mean? When Does My Xbox Use Teredo Is My Xbox Using Teredo? What Causes the Xbox Teredo Error Step-by-Step: Fix the Xbox Teredo Error Nothing's more frustrating for gamers than being unable to sign in to their Xbox multiplayer servers. If you get a "Teredo is unable to qualify" message on your console, here's what it means, and how to repair it. What Is Teredo
Teredo is short for Teredo tunneling, in this context. Think of Teredo as a translator between different versions of the Internet Protocol (IP), specifically version 4 (IPv4) to version 6 (IPv6.) The entire internet is slowly upgrading to version 6 over time, but that leaves many people using the outdated protocol. Teredo tunneling is used in situations where one endpoint of the tunnel is private, such as behind a router. That way, it can translate smoothly between the two protocols, allowing them to share data. Microsoft What Does ' Teredo Is Unable to Qualify' Mean
This error means that the Xbox was unable to secure a Teredo IP address. In other words, it's unable to determine where it should send internet traffic. When Does My Xbox Use Teredo
Teredo tunneling is only used for in-game chat and online multiplayer features. Other online features, such as video streaming and using the online store, are generally unaffected, so you may not notice the error until you use these features. How Do I Determine If My Xbox Is Using Teredo
Generally, Teredo use is determined by your internet service provider's choice of protocol. Checking your IP address online, or in the settings of a computer connected to the same network as your Xbox, tells you whether you have an IPv4 or IPv6 connection. These are two separate IP addresses; if there's no IPv6 connection, then you are on IPv4. If you have an IPv6 connection, it connects directly. What Causes the Xbox Teredo Error
Xbox Teredo errors are usually connection errors that masquerade as something more complicated. The error often pops up when something gets in the way of an Xbox getting online, meaning an issue in your home network, not something on Microsoft's end. It can be a simple Wi-Fi issue, a missed update, or something with the home network configuration. How to Fix the Xbox Teredo Error
Now that you understand what Teredo is and how it works, you can troubleshoot issues that may arise if you experience the "Teredo was unable to qualify" error. Here are some things that might help: Determine if the router is Windows-certified. This information should be on the router's box or in its documentation. A non-certified router may lack the software to balance multiple consoles for Teredo properly. Reboot the modem and router. It doesn't hurt to reboot the console too. A reboot, or restart, can clear any errors or faulty processes and may fix the error. Connect the Xbox directly to the modem or router. If you use a gateway or Wi-Fi extender, connect the console directly to the modem or router instead. This increases signal speed, making qualification easier. It also helps narrow down the possible point of failure. Connect through an Ethernet cable. A wireless interference could be slower than the actual internet speed. Connecting through an Ethernet cable allows devices to take full advantage of the connection. Check the router for a firmware update. Firmware often contains useful improvements to processes across a device, including tunneling. It's also a good idea to check the console for an update. Hardware vs Software vs Firmware: What's the Difference? Disable your VPN. If you use a virtual private network to access the internet, disable it and attempt to reconnect. VPNs may interfere with providing login credentials or with the tunneling process. Reset the router to factory settings. Certain custom settings may block tunneling, and resetting to the factory default can clear those custom settings and get things moving again. Check the IP address. Look up whether your IP address is public, as Teredo tunneling requires a public IP on both ends to connect. Open the router's settings app and look for the IP address, while using another device to look up the IP address you're currently using. If the addresses match, it's a public IP address. If they don't, request one from your internet service provider. Check the Network Address Translation table. Disable and re-enable Universal Plug and Play (UpnP) on the router. Then, restart the console and hold the Xbox button to open the guide. Go to System > Settings > General > Network settings and check the Network Address Translation (NAT) table. Set it to Open if it isn't already. Open ports for use by port forwarding on the router. Choosing specific ports may help the tunneling process. On the Xbox, select System > Settings > General > Network Settings > Advanced Settings > IP Settings > Manual and enter your chosen static IP address, Subnet Mask, and Default Gateway. Select DNS Setting > Manual and enter the primary DNS and secondary DNS, if available. Enable DMZ or perimeter network settings on the router. This allows more access to public IPs. Connect the Xbox directly to the modem using an Ethernet cable. If all else fails, cutting the router out of the equation may resolve the issue. Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit More from Lifewire How to Fix an IPv6 No Network Access Error How to Fix It When Your PS4 Wi-Fi Is Slow What Is an IP Address? How to Fix a "Failed to Obtain IP Address" Android Error How to Fix Netflix Error Code NW-2-5 on Any Device Can't Connect to the Internet? Try These 10 Tips How to Fix It When PS4 Won't Connect to Wi-Fi How to Solve a Destination Host Unreachable Error How to Change DNS Servers in Windows 10 Ways to Fix a Wireless Adapter or Access Point Error Message The Best Free and Public DNS Servers (October 2022) How to Fix Wi-Fi Authentication Problems on Android How to Connect a Router to the Internet How to Fix the PS4 'Cannot Connect to the Wi-Fi Network' Error How to Find the Default IP Address of a Belkin Router How to Connect to Your Home Router as an Administrator Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Accept All Cookies