> Source: [sk184605](https://support.checkpoint.com/results/sk/sk184605)

# sk184605 - Anti-Virus prevents HTTPS / WebSocket connections with "HTTP parsing error occurred" error in SmartConsole log

| Property | Value |
|----------|-------|
| Solution ID | sk184605 |
| Date Created | 2026-02-03 |
| Last Modified | 2026-07-06 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R82, R81.20, R81.10 (EOS) |

## Symptoms

- * In the SmartConsole Anti-Virus log, in the Forensic Details section, traffic is blocked by the Anti-Virus blade with `Reason: HTTP parsing error occurred`

* In the SmartConsole Anti-Virus log, the More section shows `Precise Error: unknown error`

* Anti-Virus prevents legitimate traffic (HTTPS / WebSocket) when HTTPS Inspection is enabled.

## Solution

[Contact Check Point Support](https://www.checkpoint.com/support-services/contact-support/) to get a Hotfix for your version.

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 involved in the case.

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

As a workaround, changing the Fail Mode in the Threat Prevention settings from Fail-Close to Fail-Open resolves the issue. Post fix installation revert the fail mode settings.

---

# Agent Instructions

This content is from the Check Point Support Center (https://support.checkpoint.com), the official knowledge base for Check Point cybersecurity products.

## Navigating This Knowledge Base

- **Complete index**: [llms.txt](https://support.checkpoint.com/llms.txt)
- **All SK articles**: [SecureKnowledge Sitemap](https://support.checkpoint.com/sitemaps/secureknowledge-sitemap-index.xml)
- **SK article URL pattern**: `https://support.checkpoint.com/results/sk/{skId}`
- **Markdown responses**: AI bot User-Agents automatically receive `text/markdown` content