the Xbox app lets you collect your friends, games and achievements across Xbox One and Windows 11/10 devices. Normally, the application works as expected, but sometimes fails under unforeseen circumstances. Server connectivity blocked is an example. The error may impact your ability to play multiplayer games.

The issue appears when you see a notification under the Settings > Network tab in the Windows Xbox app that reads Server Connectivity: Blocked. When you see this, it means your PC is unable to establish a Teredo IPsec connection to the Quality of Service (QoS) server.

Failure to establish a Teredo IPsec connection to the QoS server is mostly seen when required Windows services have been disabled. To resolve this problem, try these solutions.

Xbox app server connectivity is blocked

Let’s see the options you have to fix the problem.

1]Make sure you are connected to the internet

If you are using Windows 11/10, launch the Xbox app.

Go to the “Settings” option and select “Network”.

Next, check the network status and make sure you are connected to the internet. Please note that if you do not have an internet connection, you will need to enable it before proceeding and trying various troubleshooting steps.

2]Make sure Windows Firewall is enabled and default policy is active

Often times, some Windows 10 features not working properly can be attributed to Windows Firewall being turned on or off. This case is no exception to the rule. Windows Firewall enabled is required to establish a Teredo IPsec connection. Even if additional security software is installed on your system, Windows will still use the firewall as the first line of defense. So, if you find that for some reason your Windows Firewall has been disabled, enable it to resume Xbox Live party chat and do multiplayer games.

To find out if Windows Firewall is enabled, follow these steps.

  1. Type Windows Firewall into the search box on your toolbar (Cortana) and choose Windows Firewall from the search results.
  2. Once the main firewall screen is visible, enable Windows Firewall. Here you may need to restart your PC to allow the change to take effect.

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Next, check if the default Windows Firewall policy is enabled. For that,

Right-click the Start icon, select Command Prompt (Admin) and run the following command:

netsh advfirewall show currentprofile

If you notice or see the following output present, it means the default policy is active:

Firewall Policy     BlockInbound,AllowOutbound

If the inbound policy is set to AllowInbound, Teredo will not be able to establish an IPsec connection to other PCs or Xbox One consoles. To make the changes and reset the default firewall policy, run the following command from the Admin command prompt:

netsh advfirewall set currentprofile firewallpolicy blockinbound,allowoutbound

3]Make sure your security programs are updated

Check the software version installed. It is always advisable to keep your security software regularly updated.

4]Check the status of some Windows services

Check if the Windows services required for Xbox Live party chat and multiplayer games have been changed from their defaults.

In general, four key services are required for Xbox Live party chat and multiplayer games to work on Windows 10. If any of these services have been disabled, you should re-enable them immediately.

To find out if the required Windows services are enabled, run services.msc to open the Services Manager and check the startup type of the following services to make sure they are set to their defaults:

Service name Default startup type
IPsec IKE and AuthIP encryption modules Automatic (trigger start)
IP Wizard Automatique
Xbox Live Authentication Manager Manual
Xbox Live Networking Service Manual

It is seen that few applications reconfigure the PC settings with the aim of optimizing the performance. As such, they will disable Windows services in use, thus impacting the list of services mentioned above. To resolve this issue, simply revert these settings to the original to use Xbox Live party chat and multiplayer games.

5]Start the ‘Xbox Live Networking Service’ and ‘IP Helper’ services

These services are known to facilitate connecting to the Xbox server. So, naturally, their absence or deactivation can lead to problems in the successful connection of the Xbox application to the server. Restart these applications by finding the ‘IP Helper’ entry under the ‘Services’ window (via the Run dialog) and restarting it.

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Windows Registry

6]Uninstall VPN software

VPN software can sometimes distort the communication path between the Xbox app and the Xbox server. A common example of this in Windows 10 is the LogMeIn Hamachi app. So you have to uninstall it through the control panel.

Now open the Xbox app and check your connection again. It should be operational.

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