Edge 830 Version 9.75 USB and Wifi problems

After the update from former Software version to Edge 830 Version 9.75 : I cannot connect to Win10 Computer anymore as I did before .

- In Fact I want to transfer a GPX file from the Win10 to the Edge 830. Up to now that was no problem with USB but now the Win10 does not recognize the Edge830.

- And the Edge 830 has problems to connect to the Wifi. It has only connection to the Smartphone with Bluetooth.

What can I do?