> Source: [sk181642](https://support.checkpoint.com/results/sk/sk181642)

# sk181642 - Policy installation failure on CMA fails for 'Internal SSL authentication SSL error'

| Property | Value |
|----------|-------|
| Solution ID | sk181642 |
| Date Created | 2023-12-04 |
| Last Modified | 2024-08-19 |
| Technical Level | Advanced |
| Products | Multi-Domain Security Management Server |
| Versions | R81.10 (EOS), R81.20 |

## Symptoms

- * Policy installation fails on CMAs due to "Reason: Internal SSL authentication SSL error \[ Unknown \].
* FWM debug, [sk159452](https://support.checkpoint.com/results/sk/sk159452), during policy installation contains "Failed to read file tls_rules_ren.C Conversion cannot be performed."

* In the Multi-Domain Security Management SmartConsole there are active CMAs on the devices marked as "MLMs".

## Cause

The registry file located in `$CPDIR/registry/HKLM_registry.data `was modified incorrectly.  

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## Solution

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