My server have a folder named "public" and the public ip is "10.0.0.254".
I have a SAMBA4 AD as a controller. I have created one user called "scanner" whit password "scanner" and have set permissions to this folder.
My printer cant connect to SAMBA and show me error on authentication.
In other hosts of my network i can access / write the folder.
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Answer: As it's clearly auth error, user need to create separate on active directory and put the credentials on web interface --> Address book to scan to the folder.