Hard Drive not properly showing up in Disk Utility or Finder

Hi there,
So I have a new 2 tb external western digital hard drive and i think at one point it was not ejected properly.  Now it no longer mounts on the desktop/finder and when it shows up in Disk Utility, the information is incorrect.  In other words, it shows up as a 4gb hard drive that is unformatted, without partitions, etc.  This hard drive has info on it and three partitions.
Also, Disk Utility won't allow me to mount it, verify or repair anything.
Thoughts?

it actually just says Generic External Media and there is just one line showing it (no subfolder or anything like that.

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