WD Discovery asking me to "attach drives"

I have a MyBook 3TB external drive and recently added a My Passport 4TB external drive. Following this addition, when I now attempt to run diagnostics on the drives through WD Drive Utilities, it asks me to attach a supported WD drive.

The drives are functioning fine and back up every night, but I can’t seem to access the utility software anymore. Any suggestions (I’m obviously not a tech guru)?



Are both drives connected at once? WD Drive Utilities is not set up to handle multiple drives. Disconnect one drive to check out the other drive.


Thanks, Cliff - yes, both drives are connected at once; I’ll eject the Passport temporarily and see if WD Utilities works.