This is related to a clash of HID's between hardware.
I have the same problem.
My set up includes a desk based wireless keyboard and mouse and a Bluetooth keyboard and mouse for use in a remote living room. I have determined through a process of trial and elimination that the HID for the wireless set up is causing the conflict so when I connect to the remote I first have to disable the relevant HID entry, use the Bluetooth set up to control the download, disconnect the remote then re enable the wireless set up.
HID's can be managed through Control Panel: System: Hardware Device Manager. You should then be able to see the HID's under Human Interface Devices.

I have reported this issue to Philips but no feedback....no surprise there!!!

Have a go and see how you get on

Chris