> Source: [sk163452](https://support.checkpoint.com/results/sk/sk163452)

# sk163452 - Identity Awareness Agent does not authenticate via Kerberos SSO

| Property | Value |
|----------|-------|
| Solution ID | sk163452 |
| Date Created | 2019-11-27 |
| Last Modified | 2024-05-05 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.10 (EOS), R81 (EOS) |
| OS | Windows, Gaia |

## Symptoms

- * Identity Awareness Agent does not authenticate via Kerberos SSO from RAS or branch offices.
* Kerberos is working as long as the client is connected to the LAN.
* If traffic is allowed only via Access Role, authentication is not working.
* After running into a timeout, the Identity Awareness Agent displays a message box and asks for credentials. This log in is working fine.

## Cause

The client needs access to the Domain Controllers via a rule without Access Role to get a Kerberos Ticket.  
Only then the Identity Awareness Agent is able to use this ticket to authenticate to the gateway.

## 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