Maybe you are very happy that you can use home network to connect the Xbox Live Service. Playing multi-player Internet game at home is always a nice experience. But things can’t always be that smooth going, the network connection may got problem for many reasons. Now we will list ways to solve some of the problems. Hope these can do some help.
First, you should do nothing about Xbox 360. If you can not link to any network, you need to check your computer setting. Your home network maybe have some problem, solve it first.
Then it’s about your Xbox 360. There is a build-in network diagnostic utility in Xbox 360. You need to use this utility to check the errors. Start the utility, find System, choose Dashboard, select Network Settings, select Test Xbox Live Connection to run the text. The utility may detect some problem like configuration error. Now you should do the further investigation. Some other things you should check, to find the problem in a detailed way.
Check network adapter first, you can find the physical connection of Xbox 360. If the connection is failed, it will show you the network is disconnected. Then to check wireless network to see if the USB port got any wrong, the adapter is connected to the home network access point. And if Xbox 360 has connected to Ethernet port, the Xbox will not use the USB adapter and connect the Ethernet adapter automatically. Check the IP address is also important, it shows you if the Xbox 360 has a valid IP address. Maybe you should change the IP address if it is not valid. The DNS test also should be done. The DNS will locate the Xbox Live game server.
Sometimes it is not your problem that you can not connect to the Xbox Live, it’s just because the Live servers themselves have problem , then you can do nothing about that.