> Source: [sk179992](https://support.checkpoint.com/results/sk/sk179992)

# sk179992 - Endpoint Security Clients cannot connect to the Endpoint Security Server after it was upgraded to R81 or higher

| Property | Value |
|----------|-------|
| Solution ID | sk179992 |
| Date Created | 2022-10-05 |
| Last Modified | 2022-11-22 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | R81.20, R81.10 (EOS), R81 (EOS) |
| OS | Gaia |

## Symptoms

- * Endpoint Security Clients cannot connect to the Endpoint Security Server after it was upgraded to R81 or higher.

* Gaia Portal port was changed after the Endpoint Security Server upgrade.

* Endpoint Security (UEPM) port was changed after the Endpoint Security Server upgrade.

## Cause

#### SSL connection ports on Security Management Servers R80.40 and lower:

When you enable the **Endpoint Policy Management** Software Blade on a Security Management Server, the SSL connection port to these services automatically changes from the default TCP port **443** to the TCP port **4434**:

Note - When you disable the **Endpoint Policy Management** Software Blade on a Security Management Server, the SSL connection port automatically changes back to the default TCP port 443.

* Gaia Portal

  |---------------|--------------------------------------------------------------|
  | Configuration | URL and Port                                                 |
  | Default       | https://\<IP Address of Gaia Management Interface\>          |
  | New           | https://\<IP Address of Gaia Management Interface\>**:4434** |

* SmartView Web Application

  |---------------|-------------------------------------------------------------------------|
  | Configuration | URL and Port                                                            |
  | Default       | https://\<IP Address of Gaia Management Interface\>/smartview/          |
  | New           | https://\<IP Address of Gaia Management Interface\>**:4434**/smartview/ |

* Management API Web Services

  |---------------|----------------------------------------------------------------------------------|
  | Configuration | URL and Port                                                                     |
  | Default       | https://\<IP Address of Gaia Management Interface\>/web_api/\<command\>          |
  | New           | https://\<IP Address of Gaia Management Interface\>**:4434**/web_api/\<command\> |

#### SSL connection ports on Security Management Servers R81 and higher:

* A Security Management Server listens to SSL traffic for all services on the TCP port **443** in these cases:

  * If you performed a clean installation of a Security Management Server R81 and enabled the **Endpoint Policy Management** Software Blade.
  * If you upgraded a Security Management Server with disabled **Endpoint Policy Management** Software Blade to R81 and enabled this Software Blade after the upgrade.

  In these cases, when **Endpoint Security** SSL traffic arrives at the TCP port 443, the Security Management Server automatically redirects it (internally) to the TCP port 4434.

  |-----------------------------|--------------------------------------------------------|
  | Service                     | URL and Port                                           |
  | Gaia Portal                 | https://\<IP Address of Gaia Management Interface\>    |
  | SmartView Web Application   | https://\<IP Address of Management Server\>/smartview/ |
  | Management API Web Services | https://\<IP Address of Management Server\>/web_api/   |

* If you upgraded a Security Management Server with enabled **Endpoint Policy Management** Software Blade to R81, then the SSL port configuration **remains** as it was in the previous version, from which you upgraded:

  * A Security Management Server listens to Endpoint Security SSL traffic on the TCP port 443

  * A Security Management Server listens to SSL traffic for all other services on the TCP port 4434:

    |-----------------------------|-----------------------------------------------------------------|
    | Service                     | URL and Port                                                    |
    | Gaia Portal                 | https://\<IP Address of Gaia Management Interface\>:**4434**    |
    | SmartView Web Application   | https://\<IP Address of Management Server\>:**4434**/smartview/ |
    | Management API Web Services | https://\<IP Address of Management Server\>:**4434**/web_api/   |

## Solution

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