No icon showing up on desktop when plugged in

A couple days ago, I plugged in my WD My Passport for Mac into both a MacBook Pro laptop and a iMac desktop and everything was good. I had not used the Passport in many months. I went to do it again yesterday and today and no icon appears on the desktop as did before on both computers. The little white light is on on the Passport and I know the ports on the computers are not a problem. How to fix?

Hi elee2000,

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