I have a 4TB USB 3.0 external hard drive that I have had connected to my airport extreme and accessing. When I connect directly to my Mac the drive does not mount. How do I make this drive visible when physically connected?
Did you try mounting it manually:
Open Disk Utility in Applications\Utilities
Find the disk and click the mount button
I tried this but the disk does not appear as a seletion in the disk utility.
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