Error 1326 backing up to NAS

[Bluehaze43]

ERR 2021-11-16 07:15:01 The destination directory "\\NAS02-4DD\Back-up\Daily\02 Monday\KMD\Documents 2021-11-16 07;15;00" couldn't be created: (1326) The user name or password is incorrect: [\\NAS02-4DD\Back-up\Daily]
2021-11-16 07:15:01 * Backup part for task "Monday" ended. Number of backed up files: 0. Backup part size: 0 bytes. *

The user name and password for the NAS are stored in the Windows Credentials, and I can access it via Windows Explorer. What am I missing? I tried to run it as the user (even creating a unique user as well) and no joy.

[cobian]

Change the installation mode to Application.

[Bluehaze43]

Bingo, thank you sir!!