Cannot log into public folder after MacOS updates?

Just had a live chat with WD, this is the solution based on recent changes to Big Sur:

The My Cloud Home Public share cannot be seen on macOS computers.
Only the TimeMachineBackup share can be seen in macOS Finder.

Cause:

The My Cloud Home Public share supports the Common Internet File System (CIFS) connection method.

IMPORTANT35pxx45px Important:

The My Cloud Home Public Share is designed and implemented for Windows File Backup. It is not designed for local LAN storage access. Although is can be accessed on macOS using Common Internet File System (CIFS), it was not designed to be used as local LAN storage for Windows or macOS. Please use WD Discovery and the User Private Space for your My Cloud Home content storage needs.

Solution:

Connect using macOS (CIFS)

  • The Common Internet File System (CIFS) tag must be used for connecting to the Public Share on macOS
  • The connection must be made as the macOS Guest user

|cifs://guest:guest@MYCLOUD-XXXXX/Public|CORRECT|
|cifs://guest:guest@/Public|CORRECT|
|afp://guest:guest@MYCLOUD-XXXXX/Public|INCORRECT|
|afp://guest:guest@/Public|INCORRECT|
|//MYCLOUD-XXXXX/Public|INCORRECT|
|///Public|INCORRECT|