Xbox 360 suddenly says Network Failed, Internet Blocked

Hi there Idaho,

Thanks for reaching out. I'm sorry to hear about the issue with the Xbox 360 and Xbox Live.

I recommend to try the following articles: "I'm getting randomly disconnected from Xbox Live" and  

How to configure wireless network settings on your Xbox 360 console.

Try this and let us know the results.

[...]I've followed the troubleshooting suggestions about resetting/rebooting, etc and contacted our internet provided (they say the connection into the house is fine), but they still won't connect. [...]Any suggestions?

Is it possible that you are in a country where the government censors access to some parts of the internet?

While your provider says that the connection to the house is fine, and you are able to use the internet, it might be that a government firewall is blocking access to Xbox Live. 

When you do a connection test in the Xbox 360 network settings, at what point is the connection failing? Does the console connect to the internet but not Xbox Live, or is the internet connection itself already blocked?

When you are in the network settings, can you enter the following button combination:

LT RT RT LT RB LB

Then let the console do a traceroute to Xbox Live.

Can you show us the results of that Traceroute?

Hi!

Probably the console is not able to successfully connect to the router. Try changing your network settings and entering a static IP on the console: System->Network Settings->Wireless Network->Configure Network->Manual Settings

Hi there,

I suggest restoring the network settings on the console to factory defaults and re-connecting to your network from the beginning.

Go to your Network Settings and select the network you are trying to connect to. Then select Configure network and on the following page go over to Additional Settings. From there, Restore to Factory Defaults should be the last option, select that and go through the process of re-entering your network information and try re-connecting.

Let us know the results of restoring the network settings to default and re-connecting.

Hi there,

Ok thank you for keeping us updated. Since you say that two different Xboxs failed to connect to the network, then it's possible that the router has a firewall blocking the Xboxs or the router just needs to open another network port to allow the console's better access to the network. This is called port forwarding and will need to be configured through your router settings.

Take a look at this support article for the 4 ports that you should open for Xbox Live and then I'll also provide a port forward website that will guide you through the process depending on what router you have.

• https://support.xbox.com/en-US/xbox-360/networking/network-ports-used-xbox-live
• https://portforward.com/

I hope this helps!