Disable Proxy “Automatically detect settings”

Looks like I had another GPO policy specifically for the Terminal Servers to override my GPO. I have changed this and all is working :-)

This is what I use (a vbs I found):

DIM sKey,sValue,binaryVal
Dim oReg
Dim status
Set oReg=GetObject( "winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv")    'For registry operations througout

Const HKCU=&H80000001

status = "off"
sKey = "Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections"
sValue = "DefaultConnectionSettings"

oReg.GetBinaryValue HKCU, sKey, sValue, binaryVal

select case lcase(status)
  case "on"    binaryVal(8) = binaryVal(8) OR 8        'Force Autodetect on
  case "off"    binaryVal(8) = binaryVal(8) XOR 8        'Force Autodetect off
  case "show"    wscript.echo "Automatically detect is set to " & ((binaryVal(8) and 8) = 8)
  case else    wscript.echo "Invalid parameter - IEautomaticallydetect  on, off or show"
end select

if lcase(status)="on" or lcase(status)="off" then oReg.SetBinaryValue HKCU, sKey, sValue, binaryVal

Works flawlessly for me, I call it from a .cmd