# PDPD process crashes and becomes unresponsive

**Product**: Identity Awareness  
**Version**: R81.10 (EOS), R81.10.X, R81.20, R82  
**OS**: Gaia, Gaia Embedded  
**Last Modified**: 2026-05-26

## Symptoms
- Users are unable to access resources due to access role-based policies.
- The PDP daemon is either not running or not responding to PDP command.
- In the environment, there exists an LDAP Authentication Unit (AU) with no processors for authentication.
- The _fetch_by_SID_ feature is enabled.
- Debug lines before the crash, _empty domain SID. We tried all AU but could not locate domain SID_.

## Cause
The issue occurred because an Account Unit lacked authentication processors. When the PDPD process tried to authenticate a user with _fetch_by_SID_ enabled, it triggered a problematic flow, leading to a PDPD crash on every authentication attempt.

## Solution
This problem was fixed. The fix is included in:
- [Jumbo Hotfix Accumulator for R82](https://sc1.checkpoint.com/documents/Jumbo_HFA/R82/Default.htm) starting from Take 103
- [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 99
- [Jumbo Hotfix Accumulator for R81.10](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/Default.htm) starting from Take 173

If you are running R82 or choose not to upgrade, Check Point can supply a **Hotfix**. [Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for this issue.

A Support Engineer will make sure the Hotfix is compatible with your environment before providing the Hotfix.

For faster resolution and verification, please collect [CPinfo files](http://supportcontent.checkpoint.com/solutions?id=sk92739) from the Security Management Server and Security Gateways involved in the case.

**Hotfix installation instructions:**
Refer to [sk168597 - How to install a Hotfix](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk168597).

#### NOTE
This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

## Article Properties
**Access Level**: General  
**Status**: Approved by TAC  
**Date Created**: 2024-10-21  
**Last Modified**: 2026-05-26