Mototrbo CPS 12.1 and Windows 10

I know this is a common topic, but I have not been able to get anything to work in my weeks of searching, and I could really use some help. I am not a network or computer wizard.

I have a new to me Windows 10 Laptop with CPS 12.1 installed. CPS installed fine, drivers appeared to install fine, laptop recognizes my radios when I plug them in. I am using a known good OEM programming cable.

I get Error #1687 every time I try to read any portables or mobiles. I can see my XPR7550 under my devices as "MotoTRBO Radio", and I can see it under the device manager under Network Devices, and it says it is working properly.

No matter what I do, the radios will not read. Understand I am not trying to be spoon-fed, but I have exhausted all of my knowledge and nothing from the extensive searching I have done seems to work.