Good day!
Have a USB issue with a 2015 MacBook Pro where Disk Utility won't see a WD 5-TB USB-3 drive connected to a hub. Note that this configuration has worked flawlessly for over a year. The problem only surfaced recently in the middle of changing the partition layout and reformatting the WD USB drive.
The same hub & drive connected to a different MacBook Pro, 2016, works just fine.
Removing the hub or moving the drive to a different USB port on the 2015 and everything is good.
Adding another USB hub (downstream of the first hub) and connecting the drive to hub #2 - the 2015 sees the drive.
Based on the above tests it doesn't appear to be a hardware issue, but I am unsure where to look next.
Is there a USB explorer program that will force the MacBook to check / test / rescan the bus and identify forgotten devices?
Does OS-X block or lock out USB devices for some reason?
Have a USB issue with a 2015 MacBook Pro where Disk Utility won't see a WD 5-TB USB-3 drive connected to a hub. Note that this configuration has worked flawlessly for over a year. The problem only surfaced recently in the middle of changing the partition layout and reformatting the WD USB drive.
The same hub & drive connected to a different MacBook Pro, 2016, works just fine.
Removing the hub or moving the drive to a different USB port on the 2015 and everything is good.
Adding another USB hub (downstream of the first hub) and connecting the drive to hub #2 - the 2015 sees the drive.
Based on the above tests it doesn't appear to be a hardware issue, but I am unsure where to look next.
Is there a USB explorer program that will force the MacBook to check / test / rescan the bus and identify forgotten devices?
Does OS-X block or lock out USB devices for some reason?
