> Source: [sk181987](https://support.checkpoint.com/results/sk/sk181987)

# sk181987 - CloudGuard Controller server fails to connect to Cloud Vendors when using a 3rd-party proxy server

| Property | Value |
|----------|-------|
| Solution ID | sk181987 |
| Date Created | 2024-02-09 |
| Last Modified | 2025-03-02 |
| Technical Level | General |
| Products | Cloud Firewall |
| Versions | R81.10 (EOS), R81.20, R82 |
| OS | Gaia |

## Symptoms

- * When in a "**Generic Data Center** " object clicking the button "**Test Connection**", this popup appears:

  `Status: The connection has failed`

  `Description: Please make sure the server is running and accessible`
* This issue occurs when the CloudGuard Controller server connects to a Cloud Vendor through a 3rd-party proxy server (not a Check Point Security Gateway configured as an HTTP/HTTPS Proxy).

* This issue does not occur when the CloudGuard Controller server connects to a Cloud Vendor through a Check Point Security Gateway configured as an HTTP/HTTPS Proxy.

## Cause

The CloudGuard Controller server fails to understand the HTTP version that the 3rd-party proxy server is using.

## Solution

This problem was fixed. The fix is included starting from:

* [](https://support.checkpoint.com/results/sk/sk181127)[CloudGuard Controller Release Updates for R81.10](https://support.checkpoint.com/results/sk/sk181842) starting from Take 25

<br />

If you cannot upgrade, [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 it.  
For faster resolution and verification, collect the [CPinfo](https://support.checkpoint.com/results/sk/sk92739) file from the Management Server involved in the case.

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

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