So I ordered the ecm cable with a ftdi ttl-232r usb converter...anyway It was hit or miss if it would connect. Got it workin for like 5 m Anyinutes one time. So I tested continuity and voltage and it was no good on the transmit line. A brand new cable was no good. Must have had a bad connection on the circuit board in the usb end. Bought a new cable, different brand using the ftdi chip...everything is just fine. It just seems like there a lot of frustrated people because they get bad cables from the get go. Nothing to do with OS or drivers, but strictly bad cable. Anybody else gone through multiple cables until they got a good one. Or am I just unlucky!? Lol I think the QC might not be par from the manufacturer of these cables. I'm curious about folks like Xopti if they get a lot of bad ones come thru. I know he assembles the ends and sells a bunch of them??