Host and backup machine create backup user (BF)
On the backup machine
Set up backup users.
Backup directory right click Security, add the newly created backup BF user, and grant all rights.
Set folder sharing and set up shared users as BF users just created.
And in advanced sharing settings, remove everyone users, add BF users to grant all rights.
Host install Cobian backup 11 software
New task
Schedule, choose how long to execute, execution time.
For the first time, it will be full backup, then backup the new files.
If the log shows an incremental backup but a full backup is made, check the BF user permissions for the backup path of the backup machine