UR22 intermittently loses its driver

Just wondering if anyone has had a similar experience or may know what the problem could be.
My UR22 occasionally and for no apparent reason, will lose its drivers after the computer is shut down. It may be fine for a week or so and then it won’t fire up and then upon checking the sound control panel the UR22 does not show up anymore.
It is no problem reinstalling the driver, but is is a nuisance!

Kind regards