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This article applies to version 6.

Other available versions:

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Code42 Support

External Drive Troubleshooting Tips

Troubleshooting tips

Code42 app reports drive as "missing"

This issue occurs when the external drive is disconnected from the device or the letter or name assigned to the drive by your operating system changes. The Code42 app uses absolute paths when backing up. If the Code42 app cannot detect a drive at the specified location, such as when it is disconnected or when the name of a drive changes, it lists the drive as "Missing". You can correct the issue by reconnecting the drive or renaming the drive to match the original drive letter or name.

External drive stops backing up (Mac)

If an external drive stops backing up on a Mac, it is likely because the drive didn't unmount cleanly (for example, after a power outage, or disconnection without ejection). When this happens, the drive can leave behind a "ghost" folder in /Volumes, even though the drive is no longer mounted. When the external drive re-mounts to your device, the "ghost" folder name is already taken, so your device adds a “1” to the external drive's name. However, the Code42 app looks for a folder with the original name, and that folder belongs to a drive that appears to be no longer connected. Use our troubleshooting guide to diagnose and correct this issue.

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