I think you need to find the network drive mapping first
I cannot test due to my PC is stand alone

Here is a WMI method to find the network drive mapping:

Sub NetworkMapDrive()
    Set WshNetwork = CreateObject("WScript.Network")
    Set oDrives = WshNetwork.EnumNetworkDrives
    DrivesStr = "Network drive Mappings:" & Chr(13)
    For i = 0 To oDrives.Count - 1 Step 2
       DrivesStr = DrivesStr & "Drive " & oDrives.Item(i) & " = " & oDrives.Item(i + 1) & Chr(13)
    Next
    MsgBox DrivesStr
End Sub