I've just been through several of the threads about the difficulty of connecting an MX-850. That was after spending two hours trying to connect to one. I knew about these problems but I couldn't just tell my client to throw away his working remote that needs some modification.

Is there, finally, some totally reliable process and combinations of parts that let this just plain work?

I've got a ThinkPad T420 running Windows 7. I have the Keyspan Adaptor, USA-19H, which I think is the only single-port adaptor they ever had. I'm using a URC cable, and I swapped a second one in today just to see if that might be the problem. My laptop doesn't want to assign anything but Port 1 to the Keyspan. I've tried setting the port wrong in the MXEditor, then setting it right.

I've deleted and reinstalled the software from a fresh download. And I've been mystified as to what MXEdit and MXEditor are; I thought I wanted MXEditor, this was confirmed in an earlier thread, and neither program communicated with the MX850.

Hell, the MX850 might be dead, but since connection is not AT ALL reliable, how would one know?