How to disable Local area connection -power management options

1) Allow the computer to turn off this device to save power

2) Allow this device to wake the computer

3) Only allow a magic packet to wake the computer

Go to these registry settings

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}

In the above key Search for PnPCapabilities(Dword)

Replace the value with 38 for all the options to be unchecked

Replace the value with 118 for the below two options to be unchecked

1) Allow the computer to turn off this device to save power

2) Allow this device to wake the computer

Replace the value with 0 for the below one option to be unchecked

1) Only allow a magic packet to wake the computer

Reboot is required for these changes.