69375: Acronis Cyber Protect: Backup to Synology NAS with DSM 7.0-41890 fails with "The credentials for location are not specified"

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Last update: 27-08-2021

Symptoms

Backup to a Synology NAS with DSM 7.0-41890 fails with:

The credentials for location are not specified

Cause

NTLMv1 authentication is disabled by default in DSM 7.0-41890 (see DSM release notes)

Solution

Enable NTLMv1 authentication on NAS: go to DSM Control Panel > File Services > SMB > Advanced Settings > Others and check Enable NTLMv1 authentication.

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