How to Fix “UPnP Not Successful” on Xbox (Series X, Series S, One)

rizwanrkiff

5 hours ago

You’re ready for some online matches, maybe a party chat with friends. You run the Xbox network test, but instead of a green check, it shows “UPnP Not Successful.”

This message isn’t just a warning—it’s telling you that your Xbox can’t automatically open the network ports it needs. That means multiplayer games, voice chat, or even joining friends’ lobbies might not work right.

It’s frustrating, especially when everything else on your internet seems fine. But before you panic, it’s worth knowing what the error really means.

What Does “UPnP Not Successful” Mean on Xbox?

UPnP stands for Universal Plug and Play, a feature in most routers that helps devices open and close ports automatically. On Xbox, it’s what makes connecting to games and chats seamless without you touching settings.

When the console says “UPnP Not Successful,” it means that automatic port management failed. This can block Xbox Live from getting an Open NAT type, which is what you need for the best online experience. Without it, you might see lag, matchmaking delays, or even get dropped from games.

Common Causes of UPnP Not Successful on Xbox

The error can happen for different reasons. Here are the most common:

UPnP is turned off in your router settings
Router firmware is out of date
Double NAT due to multiple routers or modems
ISP restrictions blocking certain ports
Xbox network settings are misconfigured
Corrupted Xbox cache or temporary files
Port forwarding is set manually, conflicting with UPnP
Poor or unstable internet connection

How to Fix UPnP Not Successful on Xbox?

If you see the “UPnP Not Successful” message, start with the most straightforward steps. These will help you determine if the issue is temporary or a more significant network setup problem.

Fix #1. Restart Your Xbox and Router

A simple restart can refresh connections between your console and router.

Turn off your Xbox completely (not just sleep mode)
Unplug the power cable from your router and modem
Wait at least 30 seconds
Plug them back in and turn on your Xbox

This often clears temporary settings that may have caused the error.

Fix #2. Check if UPnP is Enabled in Your Router

The Xbox can only use UPnP if your router has it switched on.

Log in to your router’s admin page (check the label or manual for the IP address)
Look for a section like “Advanced” or “NAT Forwarding”
Make sure UPnP is set to Enabled
Save the settings and reboot your router

If you can’t find the option, your ISP or router model might not support it.

Fix #3. Re-run the Xbox Network Test

Sometimes the first test fails, but a second one passes after minor changes. Go to:

Settings > General > Network settings > Test NAT type
Check if the NAT type changes to Open after enabling UPnP
If it’s still Moderate or Strict, continue with the next steps

Fix #4. Remove Any Manual Port Forwarding

If you’ve already forwarded ports manually, they might conflict with UPnP. Disable them before testing again.

Log in to your router settings
Find the Port Forwarding section
Remove or disable all existing rules
Restart your router and Xbox

This gives UPnP full control over ports.

Fix #5. Use a Wired Connection

Wi-Fi can work fine, but a wired connection is more stable and less likely to cause NAT issues. Connect your Xbox directly to the router with an Ethernet cable, then check the network status again.

Fix #6. Update Your Router’s Firmware

Old firmware may have bugs that stop UPnP from working right. Visit your router manufacturer’s website, download the latest firmware for your model, and install it. After updating, re-enable UPnP and restart both the router and Xbox.

Fix #7. Fix Double NAT Issues

Double NAT happens when you have two routers between your Xbox and the internet. It can block UPnP completely.

Connect your Xbox directly to the main modem/router
If you have two routers, put the first one in bridge mode
Ask your ISP for help if you’re unsure

Once the setup is simplified, UPnP should work as intended.

When to Contact Xbox Support or Your ISP?

If you’ve tried the fixes and still see the error, it might be time to call in help. Xbox Support can walk you through network tests, check your account status, and guide you to router-specific steps.

Your Internet Service Provider can check if they’re blocking the ports Xbox Live needs. They might also help fix double NAT or adjust your modem settings so UPnP works as it should. Having details like your NAT type, router model, and the exact error message ready will make the process faster.

Tips to Prevent UPnP from Not Being Successful in the Future

Keeping your network setup clean and updated can reduce the chances of this problem returning.

Keep router firmware updated
Restart your router and Xbox regularly
Avoid using multiple routers unless needed
Use a wired connection for better stability
Don’t mix manual port forwarding with UPnP
Check UPnP stays enabled after router restarts
Avoid frequent changes to network settings

Conclusion

The “UPnP Not Successful” message can feel like a wall between you and your friends, but it’s really just a sign that your Xbox and router aren’t talking properly.

Most of the time, it comes down to a small network tweak—something you can fix without expensive gear or complicated tools. And once you’ve got UPnP working again, your NAT will likely open up, letting you enjoy smooth matches and crystal-clear chat.

If it does pop up again, you’ll already know the basics, and solving it will be quicker the next time.