My Book not recognized after disk stand by

When My Book 2T goes in timer stand by it will be not recognized by Mac, I have to restart it.

Hi ricc44,

What is the file format of My Book installed in macOS?

This issue may be due to file system format and can be check after changing into appropriate file format. Also you should check after updating the macOS.

The format is ExFAT,
Tnak you