UR22 still having issues after updating the driver

Hi there,please help me, this is very important. I’ve a problem with the UR22. Since I update the new OS El Capitan, the audio suddenly cut out for about 10 or more seconds, so few days ago I downloaded and installed the driver update for the UR22 which, according to the Steinberg website, fixed any issue with the compatibility on OS X 11.
Unfortunately the problem still there. Any suggestion?
Thank you