> Source: [sk181724](https://support.checkpoint.com/results/sk/sk181724)

# sk181724 - "Failed to authenticate. System error." in Remote Access VPN client when users fail to connect

| Property | Value |
|----------|-------|
| Solution ID | sk181724 |
| Date Created | 2023-12-18 |
| Last Modified | 2026-05-12 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20, R81.10 (EOS), R81 (EOS) |

## Symptoms

- * Remote Access VPN users cannot connect to resources located behind a Remote Access VPN Gateway.
* This error message appears in a popup window in the Remote Access VPN client:   
  "*Failed to authenticate. System error*".

## Cause

The Security Gateway uses an LDAP server for Remote Access VPN user authentication. An administrator of the LDAP server changed its fingerprint. An administrator of the Management Server did not change its fingerprint to match the LDAP server's fingerprint.

## Solution

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

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content