> Source: [sk1000007](https://support.checkpoint.com/results/sk/sk1000007)

# sk1000007 - Internet connectivity issues after upgrading to R81.20 Jumbo take 158 and above

| Property | Value |
|----------|-------|
| Solution ID | sk1000007 |
| Date Created | 2026-08-20 |
| Last Modified | 2026-11-12 |
| Technical Level | General |
| Products | Security Gateway |
| Versions | R81.20 |
| OS | Gaia |

## Symptoms

- * After an upgrade to the R81.20 Jumbo Hotfix Take 158 and higher, there is no Internet connectivity, or it is very slow.
* Reverting to a previous R81.20 Jumbo Hotfix Take resolves the issue.  
* Affects HTTPS traffic when HTTPS Inspection is enabled and the traffic is being inspected.
* Setting HTTPS Inspection to "Bypass" or disabling the HTTPS Inspection blade it resolves the issue.
* Disabling SecureXL resolves the issue:  
  `fwaccel off`
* Disabling Hyper Flow resolves the issue:  
  `connection_pipelining prevent`
* In some scenarios, Security Gateway generates this log:
  * Reason: `HTTP parsing error occurred (16)`
  * Precise Error: `Response out of state`

  Example:   
  ![Log Example](https://static.checkpoint.com/apps/sk/1000007/dcaa32a9-fcce-4168-a44e-97da86ddbd9d.png)

## Solution

This problem was fixed. The fix is included in:

* [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 174

**Immediate Workaround:**

Prevent HyperFlow on the Security Gateway with this command in the Expert mode:  

`connection_pipelining prevent`  
??  
**Note:** This change does not survive a reboot. HyperFlow is enabled automatically during a boot.

To enable HyperFlow again, run this command:

`connection_pipelining allow`

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