It's possible your router/modem is dropping the ip address. Mine has done this before. Its might need to be reset. Go to Start, Run, type CMD. Type ipconfig /release, wait a second, then type ipconfig /renew Turn your modem/router off, reboot your pc, then reset your modem/router by pressing the reset button on the back for 10 seconds. Your modem/Router could be bad, or going bad.