Samsung 990 Pro in Sabrent Enclosure not recognized / assignable
I have had a 990 Pro 4TB as my main / only drive in my R16 for about two years. I purchased another to use as a backup in usb-c enclosure. When I plug it in to my R16, there is no recognition of the drive, so to speak. It shows up in device manager as a SCSI device (sabrent) and in disk manager it shows up as a second disk, correctly reporting "Online" and the size. I could not format the drive on my R16 even after creating that volume, so I brought it over to a 5-year old Dell desktop where it was immediately recognized, and formatted as NTFS. Bringing it back to my R16, I plug it in, and it again is not recognized / receives no drive letter, and cannot be assigned a letter. If I try to format it, or assign it a drive letter on the R16, it says "The operation failed to complete because the Disk Management console view is not up-to-date. Refresh the view by using the refresh task. If the problem persists close the disk management console, then restart Disk Management or restart the computer.
I have restarted disk management. I have restarted the computer (actual restart , not just shut down and wake back up. ) I have plugged the drive into all 3 usb-c ports (front and back). I have gone through every step chatGPT could come up with, but I'm stuck. There just seems to be something incompatible between the R16 and the drive/enclosure. I can't figure out why it worked instantaneously in a 5-year old machine...
Would love any pointers. Thanks!