Found a bunch of old posts on this but not the solution. Figured I would post it here for archived reference.
Problem: Upgraded to windows 10 and cannot read radios. Instant 1687 Error
--
Solution :
If you've got the 'MOTOTRBO Drivers' folder in the 'C:\Program Files (x86)\Motorola' folder, then go into the 'MOTOTRBO Drivers folder' then into the RNDIS sub folder.
Once there, run DPinst.exe. That will install the drivers that let your computer see the radio as an internet device. When you plug in the radio, you should see Windows ask you if you want to recognize new networks. Choose yes.
Note that sometimes it takes a while for the computer to see the radio when it's first being discovered.. Leave it plugged in for a few minutes.
-----
Thanks to this link for posting the solution that worked for me.
Problem: Upgraded to windows 10 and cannot read radios. Instant 1687 Error
--
Solution :
If you've got the 'MOTOTRBO Drivers' folder in the 'C:\Program Files (x86)\Motorola' folder, then go into the 'MOTOTRBO Drivers folder' then into the RNDIS sub folder.
Once there, run DPinst.exe. That will install the drivers that let your computer see the radio as an internet device. When you plug in the radio, you should see Windows ask you if you want to recognize new networks. Choose yes.
Note that sometimes it takes a while for the computer to see the radio when it's first being discovered.. Leave it plugged in for a few minutes.
-----
Thanks to this link for posting the solution that worked for me.
CPS Error 1687 on xpr5550
I just recently updated my CPS software to version 12.0 Build 642 on windows 10 and I was trying to update firmware. I connected the OEM cab...
xpr5550.blogspot.com