nic power management changes after a reboot
We are running Windows 7 Enterprise, fully patched on Dell Optiplex 745, 755, 760, and 980 computers and I can duplicate this on all of them.
I go into Device Manager -> Network Card -> Power management. Check the boxes that we want. Close Device Manager. Reopen Device Manager to check that the change took. It did. Reboot. All Power Management settings for the nic are now unchecked.
Normally we run a script to do this, but it doesn't matter whether you make the change via script or by hand, the Power Management settings always revert back to all three boxes unchecked after a reboot.
As long as the computer isn't rebooted or shut down, the setting sticks for at least several days, the longest time we've tested.
I found one thread that said this was a known issue, but the link to the answers.microsoft.com page came up 404.
Here's the script, but like I said, it doesn't matter whether by script or by hand.
On Error Resume Next
Const wbemFlagReturnImmediately = &h10
Const wbemFlagForwardOnly = &h20
arrComputers = Array(".")
For Each strComputer In arrComputers
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\WMI")
Set colItems = objWMIService.ExecQuery("SELECT * FROM MSPower_DeviceEnable", "WQL", wbemFlagReturnImmediately + wbemFlagForwardOnly)
Set colItems3 = objWMIService.ExecQuery("SELECT * FROM MSPower_DeviceWakeEnable", "WQL", wbemFlagReturnImmediately + wbemFlagForwardOnly)
Set objWMIservice2 = GetObject("winmgmts:\\" & strComputer & "\root\cimv2")
Set Colitems2 = objWMIService2.ExecQuery("Select * From Win32_NetworkAdapter")
For Each objItem in Colitems2
if objitem.adaptertypeID = 0 and objitem.netconnectionid <> "" and (objitem.adaptertypeID = 0 and ( instr(1,objitem.netconnectionid,"wireless",1) = 0)) and objitem.adaptertypeID = 0 and objitem.manufacturer <> "Microsoft" then
For Each objItem2 In colItems
IF LEN(objitem.PNPDeviceID) <= LEN(objItem2.InstanceName) THEN
IF UCASE(objItem.PNPDeviceID) = LEFT(ucase(objItem2.InstanceName),LEN(objitem.PNPDeviceID)) THEN
'wscript.echo "Active: " & objItem2.Active
'wscript.echo "Enable: " & objItem2.Enable
'wscript.echo "InstanceName: " & objItem2.InstanceName
objitem2.enable = "0"
For Each objItem3 In colItems3
IF LEN(objitem.PNPDeviceID) <= LEN(objItem3.InstanceName) THEN
IF UCASE(objItem.PNPDeviceID) = LEFT(UCASE(objItem3.InstanceName),LEN(objitem.PNPDeviceID)) then
'wscript.echo "Active: " & objItem3.Active
'wscript.echo "Enable: " & objItem3.Enable
'wscript.echo "InstanceName: " & objItem3.InstanceName
objitem3.enable = "1"
Set objReg=GetObject("winmgmts:impersonationLevel=impersonate!\\" & strComputer & "\root\default:StdRegProv")
' Connect to Root\Cimv2 and Root\Wmi namespaces
Set objCimv2 = GetObject("winmgmts:root\cimv2")
Set objWmi = GetObject("winmgmts:root\wmi")
' Get all network adapters where IPEnabled is true
Set colAdapterConfigs = objCimv2.ExecQuery ("Select * From Win32_NetworkAdapterconfiguration Where IPEnabled = True")
For Each objAdapterConfig In colAdapterConfigs
Set colAdapters = objAdapterConfig.Associators_(, "Win32_NetworkAdapter")
For Each objAdapter In colAdapters
' Get the matching MSNdis_DeviceWakeOnMagicPacketOnly instance
Set colDeviceWakeOnMagicPacketOnly = objWmi.ExecQuery _
("Select * From MSNdis_DeviceWakeOnMagicPacketOnly " _
& "Where InstanceName Like '" _
& Replace(objAdapter.PNPDeviceId, "\", "\\") & "%'")
' Enable "Only allow management stations to bring the computer out of standby"
For Each objDeviceWakeOnMagicPacketOnly In colDeviceWakeOnMagicPacketOnly
objDeviceWakeOnMagicPacketOnly.EnableWakeOnMagicPacketOnly = False
'wscript.echo "Enabled Magic Packet Only on " & objAdapter.Name
Anwsers to the Problem nic power management changes after a reboot
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