Drivers issue - Win7 64 bit and Tab S with Cyanogenmod 13

Hi all. I cannot get my computer to install/recognize drivers for the Samsung T700 Tab S running Cyanogenmod 13. I'm running Windows 7 64 bit. I have reinstalled the drivers several times, The device shows up in task manager, but not in windows explorer. I keep getting the message that the driver is not installed.

My rooted phone running Lollipop shows up fine, same USB port and same cord.

Any ideas? Thanks!