This one has me stumped. As the title says, I can't get a connection from my computer to the SDS200 in MSM. But it connects fine using Sentinel. I also tried to connect laptop Proscan to SDS200 and that was also a no go. I then tried to connect my 996XT to Proscan on main computer and it connected fine. Anyone else have any ideas to fix this? One other thing, ever since I have had the radio it has always been difficult to get it to assign a com port to Proscan. After a few clicks on the auto detect button it would work. But now nothing. I'm thinking bad cable but if it connects using Sentinel I'm not so sure.