> Source: [sk107744](https://support.checkpoint.com/results/sk/sk107744)

# sk107744 - Unable to access some HTTPS sites after enabling HTTPS Inspection "Probe Bypass" mechanism

| Property | Value |
|----------|-------|
| Solution ID | sk107744 |
| Date Created | 2015-10-30 |
| Last Modified | 2019-03-12 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |
| OS | Gaia |

## Symptoms

- * "`Page not found`" error in web browser when trying to connect to some HTTPS sites after enabling HTTPS Inspection "Probe Bypass" per [sk104717](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk104717#Improvements in HTTPS Inspection Bypass mechanism) (*enhanced_ssl_inspection=1*).

* Kernel debug ('`fw ctl debug -m fw + drop`') shows that HTTPS connection to the HTTPS site is dropped:  

  `;fw_log_drop_ex: Packet proto=6 Client_IP_Address:Port -> Server_IP_Address:443 dropped by fwhold_expires Reason: held chain expired;`

## Cause

1. The involved HTTPS sites are configured to use TLS v1.1
2. The HTTPS Inspection is configured to use at least TLS v1.2

## Solution

This solution requires authentication. Please log in to view the full solution.

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