I use a Dell P2715Q 4k screen with a USB 3.0 hub. With Apple OS 10.11.0, I was able to mount my USB drives for this machine. After the update to Apple OS 10.11.1, the MacBook does not see the USB drives? I can still connect the drives directly to the MacBook and they work. However, via the monitor , they worked 100% before the 10.11.1 upgrade. MacBook Pro with Retina display, OS X Yosemite (10.10.4), 2015. What can I do to fix this?
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