exiernal drive not showing up on mac
WD My Passport does not connect to the Mac Book Air (it is meant to back up) or to my iMac--when connected to a USB port on the iMac, an amber light on the external drive blinks on and off every few seconds, but it does not show up as an external drive on Disk Utility--I have a second My Passport which has functioned properly on the iMac for years
iMac 27″, macOS 14.6