# FWK process may exit when deleting one subordinate interface from a bonding group

**Product:** Maestro HyperScale Firewall  
**Version:** R81.20, R82  
**Last Modified:** 2026-07-23

## Symptoms

- One Security Group member went to `DOWN` after attempting to remove a subordinate interface from a bonding group.
- The FWK process may exit on that Security Group member and a FWK core dump file created under folder `/var/log/dump/usermode/`.
- A reboot occurs after the member pulled the updated configuration from the SMO upon returning from the `DOWN` state.

## 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 158

If you choose not to upgrade, [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 it.

For faster resolution and verification, collect these files:

1. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.
2. [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Security Gateway / each Cluster Member / Security Group involved in the case.

**Hotfix installation instructions:**

Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/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:** 2025-08-21  
**Last Modified:** 2026-07-23