Hi,
1. Were you able to use that player without any issue earlier?
2. Did you make any changes on the computer prior to this issue?
3. What exactly happen when you connect the player? Do you receive any error message?
4. Which troubleshooting steps did you try?
5. Did you try connecting it to different USB ports and check?
6. Did you connect it to different computer and check what happens?
Let’s try these steps and check.
1. Open the device manager.
2. Right-click on the device and select Uninstall.
3. Click on Action option in menu bar and select Scan for hardware changes.