xbox 360 live connection

I have been able to load and connect the xbox live for one of the profiles on my console. My issue or question is that I have 2 boys using the same console, each with their ow profile. Can both of them have a nametag, avatars to play xbox live? I only
have one email address, one xbox live account when I set up the account. Right now the profile that was open at the time of set up is the only profile that can go live. The other profile can join as a guest but is not able to use the headset and listen/talk
to others. So can both of the kids be signed in under their profiles and both play the same game live?

:)

 

Rare Replay

Anyone else unable to sign into xbox live when playing the 360 games?

When pressing both the Menu and View buttons to bring up the mini guide it just says connect to xbox live.

 

What is Xbox LIVE?

Xbox LIVE provides you with the most amazing entertainment experience through the Xbox 360 console. You can download and play games, get instant access to a large collection of games and music, and connect with your friends.

Wireless connection

You can connect your Xbox 360 console to Xbox LIVE without the need for any network cables. There is a wireless network in place that your Xbox 360 console can use.

Requirements
• An Xbox 360 Wireless Networking Adapter (only available with the original Xbox 360 console).
• A wireless access point, gateway or router that is compatible with Xbox LIVE.
• High Speed Internet connection, preferably DSL or cable.

Note: It is not advisable to use Satellite, 3G or 4G mobile connections due to the possibility of slow performance or lag.