I recently got a new Xbox 360 refurbished from Game Stop and it has been about a week and now it wont connect to the internet anymore, I have tried a wired connection, a wireless connection, restarting my internet, using Google dns servers, resetting the network drivers and nothing works. I have another Xbox just with a broken optical drive and I was wondering if I can switch the network cards, and if anyone has any other suggestions or knows how to fix it please help me.