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NinjaOne Backup — Error 310: Unable to Backup Volume
Audience: T2 Use when: Image backup fails with "Error 310: Unable to back up volume." What This Error Means Lockhart attempted to back up a specific volume (disk partition) and failed at the volume level — not at the VSS, NAS, or cloud level. The failure is s...
NinjaOne Backup — Error 311: Integrity Check Failed
Audience: T2 Use when: Backup fails with "Error 311: INTEGRITY_CHECK_TOO_MANY_ERRORS_FAILED." What This Error Means NinjaOne performs periodic integrity checks on the backup repository stored on the NAS. Error 311 means the integrity check found too many inco...
NinjaOne Backup — Error 312: Backup Repository Root Folder Missing
Audience: T1 / T2 Use when: Backup fails with "Error 312: Existing NinjaOne Backup repository root folder location missing." What This Error Means The backups/ninjaone root folder that NinjaOne previously wrote backup data to no longer exists on the NAS. The ...
NinjaOne Backup — Error 344: NAS Storage Low Space (Warning)
Audience: T1 / T2 Use when: Backup fails with "Error 344: Network Storage Low Space" (warning) — distinct from Error 345 (critical). Error 344 vs. Error 345 Code Threshold Backup Impact 344 NAS storage is low — approaching full Warning only — backup ma...
NinjaOne Backup — Error 342: NAS Write Error
Audience: T2 Use when: Backup fails with "Error 342: NAS Write Error." What This Error Means Lockhart connected to the NAS, authenticated successfully, and attempted to write backup data — but the NAS rejected the write or the write failed mid-operation. The ...
NinjaOne Backup — Error 150: Backup Database Error
Audience: T2 Use when: Backup fails with "Error 150: Database Error." What This Error Means Lockhart maintains an internal SQLite database that tracks backup metadata — revision history, block checksums, file indexes, and job state. Error 150 means this inter...
NinjaOne Backup — Error 360: Cloud Communication Error
Audience: T1 / T2 Use when: Backup fails with "Error 360: Cloud communication error." What This Error Means Lockhart cannot reach NinjaOne's cloud storage backend, which is hosted on Amazon Web Services (AWS). The local NAS leg of the backup may have complete...
NinjaOne Backup — Error 131: Connection Lost During Backup
Audience: T2 Use when: Backup fails with "Error 131: Connect lost during backup operation." What This Error Means Unlike Error 360 (which fires when the cloud is unreachable from the start), Error 131 means Lockhart established a connection to NinjaOne's clou...
NinjaOne Backup — Error 10053 & 10054: Connection Aborted / Reset
Audience: T2 Use when: Backup fails with "Error 10053: Connection aborted by host machine" or "Error 10054: Connection reset by host machine." These are Windows Sockets (Winsock) error codes surfaced through Lockhart during the cloud upload phase. 10053 vs. 1...
NinjaOne Backup — Network Allowlist & Firewall Requirements
Audience: T2 Use when: Setting up a new site, troubleshooting cloud connectivity errors (360, 131, 10053/10054), or confirming a UDM isn't blocking NinjaOne traffic. What NinjaOne Backup Needs to Reach Lockhart communicates with two categories of external end...
NinjaOne Backup — Error 318: Network Storage Not Defined
Audience: T1 / T2 Use when: Backup pre-flight fails with "Error 318: NAS_NOT_DEFINED." What This Error Means No default network storage device has been configured at the organization, location, or device level in NinjaOne. The backup plan is set to use local ...
NinjaOne Backup — Error 13: Access Denied (NTFS Permissions)
Audience: T1 / T2 Use when: Backup fails with "Error 13: Missing or insufficient permissions. Access Denied." What This Error Means The SYSTEM account on the device running Lockhart was denied access to one or more files or folders that are included in the ba...
NinjaOne Backup — Error 5: EFS-Encrypted File Access Denied
Audience: T2 Use when: Backup fails with "Error 5: Access denied to agent due to EFS file encryption." What EFS Is EFS (Encrypting File System) is a Windows feature that encrypts individual files or folders using the user's certificate. Files encrypted with E...
NinjaOne Backup — Error 20: Individual File Deleted from Backup Path
Audience: T1 Use when: Backup fails with "Error 20: Individual file deleted as folder backup path." What This Error Means The backup plan has a specific file or folder path configured as a backup target, but that path no longer exists on the device. Lockhart ...
NinjaOne Backup — Error 313 & 314: File Not Found / Inconsistent File
Audience: T2 Use when: Backup fails during integrity check with "Error 313: File not found" or "Error 314: Inconsistent file." These errors both fire during NinjaOne's integrity verification of the backup repository. They indicate that files in the backup inde...
NinjaOne Backup — Error 315: NAS Authentication Failed
Audience: T1 / T2 Use when: Backup fails with "Error 315: Credentials failed when authenticating to Network Storage device." What This Error Means Lockhart reached the NAS (network connectivity is fine) but the NAS rejected the authentication attempt. The cred...
NinjaOne Backup — Error 316: No Host Found for Network Storage
Audience: T1 / T2 Use when: Backup fails with "Error 316: No host found for Network Storage." What This Error Means Lockhart is trying to connect to the NAS using the hostname in the configured UNC path, but cannot resolve or reach that hostname. The NAS eith...
NinjaOne Backup — Error 317: Unable to Request Credentials
Audience: T1 / T2 Use when: Backup fails with "Error 317: UNABLE_TO_REQUEST_CREDENTIALS." What This Error Means Lockhart's pre-flight check requires retrieving the NAS credentials from NinjaOne's cloud platform before it can connect to the NAS. Error 317 mean...