My Passport is not backing up

My Passport is set to continuously back-up files from my PC. It used to do this but suddenly has stopped and is not backing up at all. I checked the settings and reset it to continuously back-up but it is not saving any new information. Any ideas on what might be wrong? There is plenty of unused memory so it’s not a capacity issue.

Hello,

What version of the software are you using?

Have you tried reinstalling the software?