crwdns2934241:0crwdne2934241:0 simone.crete

crwdns2934249:0crwdne2934249:0:

Which macOS are you using? Is it High Sierra? Some WD have issues with the new macOS.

But, are you able to see the WD in the Disk Utility?

crwdns2915684:0crwdne2915684:0:

open