Since I use the El Capitan Beta (v2), my Keyboard and my mouse is disconnecting regularly (It works fine on my macbook or mini) And today, my USB-connected audiodevice Scarlet 2i2 (with 2 speakers) wont play any music. When I disconnect the cable and put it back in, it works again, for maybe 1 hour. What's happening with the keyboard, is very similar to my audiodevice. Is it a common problem with El Capitan? A workaround maybe? Thanks!