windows 7 and netgear dg83g v3 wireless router

i have a problem with my computer and my wireless rputer, the problem is that when my computer is turned on tge ethernet port numer 1 light on my router is green and that is how it is supposed to be, however when i shut my computer down the light for ethernet port 1 goes orange, but when my computer get switched it changes back to green on windows 7's login screen.this was working fine a couple of days ago howevr it has just started happening, i have tried the lead in different ethernet ports on my router and tried using a different ethernet cable. i have aso u ninstalled and reinstalled the driver for my computers ethernet port, my ethernet port is built in to my motherboard.os: windows 7: home premium, 64-bitrouter: netgear dg835g v3 with latest firmware