The share denied anonymous access to the client. Client Name: %8 Client Address: %6 Share Name: %2 Share Path: %4 Guidance: ...

The share denied anonymous access to the client.

Client Name: %8
Client Address: %6
Share Name: %2
Share Path: %4

Guidance:

You should expect this error when a client attempts to connect to shares and does not provide any credentials. This indicates that the client is not providing a user name (and domain credentials, if necessary). By default, anonymous access to shares is denied.

This error does not always indicate a problem with authorization, but mainly authentication. It is more common with non-Windows clients.