> Source: [sk182990](https://support.checkpoint.com/results/sk/sk182990)

# sk182990 - Blocked HTTP HEAD requests from Android devices

| Property | Value |
|----------|-------|
| Solution ID | sk182990 |
| Date Created | 2025-01-06 |
| Last Modified | 2025-06-23 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82, R81.20, R81.10 (EOS) |
| OS | Gaia |

## Symptoms

- Android devices generate HTTP HEAD requests to Google services through the Security Gateway proxy. The proxy blocks these requests, creating a high volume of logs (more than 37,000 in 24 hours). This excessive logging causes increased CPU usage and impacts Security Gateway performance, though Android device functionality remains unaffected.

## Cause

Android devices sending HTTP/1.1 requests without required Host header violates RFC 7230. Security Gateway proxy blocks these non-compliant requests per protocol standards and security requirements as malformed.

## 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 14
* [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 177

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).

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