UR44 not recognized by Windows 10

My UR44 sometimes starts blinking the power led. Windows reports that the device is probably not working. Power-cycling helps, but after some weeks it gets worse and stops more and more often, and in the end it just will not work at all. I already have latest driver, but still it works to re-install the same driver, and it works well for a couple of months again.

Anybody recognize this behavior?

Anybody knows how to fix it permanently?