How to Make a WMI call fail?

I'm a developer but I have a question that seems belongs more in the ServerFault category than StackOverflow.

We have a production service that every so often tends to throw:

System.Runtime.InteropServices.COMException: Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED))

The code that's triggering this error is using WMI to get network interface MAC addresses. I have replacement code that doesn't use WMI but we need to verify the issue before/after the change. My question then is: How can I artificially recreate the error message generated above?