Xbox 360 and Laptop won't connect to the internet at the same time wirelessly?

I have a Dell Inspiron 1440 and an Xbox 360. Whenever i try to connect them both to the wireless internet only one will be connected and the other one won't have any signal. I have a Cisco wireless router. Any Tips?Xbox 360 and Laptop won't connect to the internet at the same time wirelessly?
The connection is probably interfering with each other.Xbox 360 and Laptop won't connect to the internet at the same time wirelessly?
LOL, get a D-Link.... just kidding.. what you have is your devices sharing an ip address. You need to set up or add an ip address in your router. This will be in your control settings for the router. If you can force your xbox to accept a new ip or set your router to assign unique ip's you should be able to solve this problem.