Cable and Drive issues

Mojave desktop version 10.14.6 (18G4032) Time Machine does not recognize Passport Ultra. It says “Time Machine not configured” and when System Preferences opened Time Machine does not have on/off switch and when “Select Backup Disk” clicked only “Other Airport Time Capsule” appears. Nothing about Passport Ultra meaning, you cannot choose. Passport Ultra does not even appear on Desktop.
Alfie2

Hi,

You could refer to the following link: https://support-en.wd.com/app/answers/detail/a_id/12455