To update your windows drivers: Open your device manager and select "network adapter" then select the ethernal drivers, or you can just google for software to update windows drivers such as Driver Booster etc.
But in my case, I used ethernet cable cat6 and it won't work then I switched to cable cat 5 and it worked even though it takes some times to connect in my laptop.
You might also want to check on which plug your cable is plugged on router because there are plugs for ethernet and iptv.