# On Maestro, traffic to Remote Access client is dropped with "vpnk_tcpt invalid negative tunnel id"

**Product**: Maestro HyperScale Firewall, Remote Access VPN  
**Version**: R81.10 (EOS), R81.20, R82  
**OS**: Gaia  
**Last Modified**: 2025-12-23

## Symptoms

- On Quantum Maestro, traffic from a server to Remote Access client is dropped with `"vpnk_tcpt invalid negative tunnel id"` reason Maestro.

`@;...[fw4_1];VPN-1: vpn_encrypt_chain: packet is forwarded, encryption will be done on another instance;`
    
    `@;...[fw4_1];vpnk_get_mspi_from_opaque: retuned mspi = 8e (i: 0) (cdir = 1 dir = 1) );`
    
    `@;...[fw4_1];get_msa_by_mspi: Found MSA for mspi 8e (i: 0) in global table.;`
    
    `@;...[fw4_1];vpnk_tcpt: packet with tunnel_id=-1 < 0;`
    
    `@;...[fw4_1];fw_log_drop_ex: Packet proto=1 1xx.x.x.x:1 -> 10.y.y.y:0 dropped by vpnktcpt_chain_out Reason: vpnk_tcpt invalid negative tunnel id;`

- Traffic from Remote Access client to the server works.

## 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 10  
- [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 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**: 2024-11-04  
**Last Modified**: 2025-12-23