Get current settings

gwmi Win32_TSNetworkAdapterSetting -filter "TerminalName='RDP-Tcp'" -namespace "root/cimv2/TerminalServices" | Select NetworkAdapterLanaID,NetworkAdapterName

Modify settings

Get instance

$ts = gwmi Win32_TSNetworkAdapterSetting -filter "TerminalName='RDP-Tcp'" -namespace "root/cimv2/TerminalServices"

Check network adapters

$ts | select -expand DeviceIDList
$ts | select -expand NetworkAdapterList

Change bind

$ts.SetNetworkAdapterLanaID(1)

Verify

gwmi Win32_TSNetworkAdapterSetting -filter "TerminalName='RDP-Tcp'" -namespace "root/cimv2/TerminalServices" | Select NetworkAdapterLanaID,NetworkAdapterName