> Source: [sk106940](https://support.checkpoint.com/results/sk/sk106940)

# sk106940 - Most recent Threat Emulation engine version reverted to old version after restore 

| Property | Value |
|----------|-------|
| Solution ID | sk106940 |
| Date Created | 2015-07-21 |
| Last Modified | 2021-11-29 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |

## Symptoms

- The most recent TE engine version will be reverted to the old version after restore, when use system backup and restore. The issue cannot be solved by `"# tecli advanced downloads update all"`.

## Cause

$FWDIR/teCurrentPack is a symbolic link, that is pointing to the incorrect version of the TE engine.

## Solution

This solution requires authentication. Please log in to view the full solution.

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