Go your computer and laptop and goto
www.whatismyip.org
then if they match then change them.
Instruction
First click on Start then Run and type command in the Open: field and press the OK button.
To determine what your IP address and default gateware are we need to run ipconfig.exe. Type ipconfig.exe and press enter. The Default Gateway address and the IP Address will be displayed. Regardless of whether there are addresses listed here, continue with the next two steps.
You will need to release your current IP address and gateway in order to get a new one. If this turns out not to be the problem with your computer, this proceedure will not hurt anything by attempting it. Release your current IP by typing the following ipconfig /release and then press enter. This will release any assigned IP addresses and gateways from your computer.
Next you need to type in ipconfig /renew to get a new IP address or default gateway. On the screen your should see your new Default Gateway and IP Address. If you are using a router or your IP has not changed on your modem then the addresses may not have changed.
Type exit to leave the command prompt and get to Windows.
These changes should take effect immediately.