# QoS Software Blade fails to start with error: "QoS is not responding. Verify that QoS is installed on the gateway"

**Product**: QoS  
**Version**: R81.10 (EOS), R81.20, R82  
**OS**: Gaia  
**Last Modified**: 2026-02-18

## Symptoms

- The QoS Software Blade does not start and displays the error:
```
'QoS' is not responding. Verify that 'QoS' is installed on the gateway.
```

- SmartConsole logs show:
```
QoS service was stopped.
```

- This error appears while you install the QoS policy:
```
Error - Make sure the QoS service is started" while installing QoS policy.
```

- When you manually restart the Blade with the `etmstart` command, this error appears:
```
[ERROR] etm_register: Failed to send ETMDRV_HOOK ioctl to all devices

[ERROR] etm_register: Failed to send ETMDRV_TIMERS_STATE 1 ioctl to all devices

[ERROR] etmreg: Operation failed: No such file or directory

QoS: 'fgate ctl etmreg on' Failed"
```

- Rebooting the Security Gateway resolves the issue temporarily.

## Cause

## 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 73
- [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 122
- [Jumbo Hotfix Accumulator for R81.10](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/Default.htm) starting from Take 183

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://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**: 2025-09-04  
**Last Modified**: 2026-02-18