: MY ROUTER DOES NOT HAVE AN EARTHNET OPENING TO CONNECT TO MY XBOX 360 AND ITS A WIRED...

I think its time to invest in WiFi.

If you're just using a router connection and you switch back and forth between the 360 and a laptop, the modem needs to be power cycled every time you plug it in to a different device.

The OP is using a modem/router (gateway) a combined unit. If you are using a cable modem that can only issue one ip address you will need to restart the modem if you are switching to another device yes, but the OP isn't using that type of kit, its a standard
router, you can unplug / plug in devices as you like without restarting anything

Can you get online with direct connection to modem wired..if so its your router and you will need to contact them.

you might need your network options back to its default state use these steps to do so:

Turn off your Xbox 360 console.

Wireless connection only: Unplug the Xbox 360 Wireless Networking Adapter from the USB port (if applicable).

Turn on your console.

Press the Guide button on your controller, go to Settings, and then select System Settings.

Select Network Settings.

Select Wired Network or the name of your wireless network, if you are prompted to do so.

Select Configure Network.

On the Additional Settings tab, select Restore to Factory Defaults.

could something be interfering? either the laptop and its wired connection(adapter) or perhaps something else?