> Source: [sk167972](https://support.checkpoint.com/results/sk/sk167972)

# sk167972 - Policy installation fails on a specific VS with "Internal SSL authentication SSL error [ Unknown ]" error

| Property | Value |
|----------|-------|
| Solution ID | sk167972 |
| Date Created | 2020-08-01 |
| Last Modified | 2021-08-31 |
| Technical Level | Advanced |
| Products | Security Gateway, Security Management Server, Multi-Domain Security Management Server |
| Versions | R81.10 (EOS), R81 (EOS), R81.10 (EOS), R81 (EOS), R81 (EOS), R81.10 (EOS) |
| OS | Gaia |

## Symptoms

- * Policy installation fails on a specific VS with "Internal SSL authentication SSL error \[ Unknown \]" error.

  ![Policy install error](https://sc1.checkpoint.com/sc/SolutionsStatics/NEW_SK_NOID1594538875454/internal ssl error202007121051201.png)
* Extending the error window shows:  
  `
  "the following certificate on gateway "xxxxx_vs" has already expired:`  
  `
  1. DN:=CN=vs_name VPN certificate,O=<Main_Cma_name>, expiration date <day> <month> <time> <year> `  
  `
  "the following certificate on gateway "xxxxx_vs" has already expired:`  
  `
  1. DN:=CN=vs_name VPN certificate,O=<Main_Cma_name>, expiration date <day> <month> <time> <year> `

* Checking for SIC communication shows SIC communicating with the VS

* Status of '# vsx stat -v' shows "Trust" on the VS is established

* Reset SIC works but the issue is not resolved

* FWM debug shows:  
  `
  [FWM PID]@MGMT[DATE TIME] SIC Error for amon: Authentication error`  
  `
  [FWM PID]@MGMT[DATE TIME] opsec_auth_client_connected: connect failed (147)`  
  `
  [FWM PID]@MGMT[DATE TIME] opsec_auth_client_connected: SIC Error for amon: Authentication error`

* Strangely CPD debug does not show any activity related to the SIC reset request while in debug mode during this scenario.

* The Certificate for the VS is "Expired" on the relevant Main_CMA for this VS, as mentioned in 5, reset SIC does not change this state.

* The SIC certificate is Valid on both sides (CMA/Management server \& VSX)

## Cause

A VPN certificate was once issued to the VS in question and was never removed, however the IPSECVPN checkbox was unchecked and so the certificate became "invisible".

## Solution

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

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