> Source: [sk184601](https://support.checkpoint.com/results/sk/sk184601)

# sk184601 - No connectivity between a Cluster HA management interface and server on the same network over a bridge

| Property | Value |
|----------|-------|
| Solution ID | sk184601 |
| Date Created | 2026-02-08 |
| Last Modified | 2026-02-10 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82.10, R82 |

## Symptoms

- * No connectivity between a Cluster HA management interface and a server on the same network over a bridge.

  Example environment:  

  ![](https://sc1.checkpoint.com/sc/SolutionsStatics/sk184601/connection_example202601271508041.png)
* Setting the kernel parameters as outlined in [sk105899](https://support.checkpoint.com/results/sk/sk105899) and [sk183124](https://support.checkpoint.com/results/sk/sk183124) do not resolve the issue.

* When you run the command on the Security Gateway in Expert mode:  

  `arp -an`  

  The ARP entry for the target server remains incomplete.

* Kernel debug (fw ctl debug -m fw + drop) on the active cluster member shows ARP drops, for example:  

  `fwha_select_arp_packet: drop ARP packet from ip xx.xx.xx.xx, arp yy:yy:yy:yy:yy:yy; `  
  `
  fw_log_drop_ex: Packet proto=-1 ?:0 -> ?:0 dropped by fwha_select_arp_packet Reason: arp src is from local; `

* The solution for ARP drop provided in [sk92996](https://support.checkpoint.com/results/sk/sk92996) does not resolve the issue.

## Cause

An ARP packet originating from the Cluster member returns to this same member unchanged. The Firewall detects the Source IP address that is inquiring about the ARP, and since it matches the Cluster member, it drops it.

## Solution

[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:  

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

<br />

Hotfix installation instructions:  
Refer to [sk168597 - How to install a Hotfix](https://support.checkpoint.com/results/sk/sk168597).

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