> Source: [sk61620](https://support.checkpoint.com/results/sk/sk61620)

# sk61620 - Ports used by Endpoint Security - E80.X

| Property | Value |
|----------|-------|
| Solution ID | sk61620 |
| Date Created | 2011-03-16 |
| Last Modified | 2023-07-09 |
| Technical Level | Advanced |
| Products | Endpoint Security |
| Versions | Cloud, E89.X, E88.X, R82.20, R82.10, R82, R81.20 |
| OS | Windows |

## Symptoms

- INFO - Failed to communicate with central server because of Connection timed out: connect WARN - Program Advisor synchronization could not be initialized, related services will work until this connection is established WARN - ServerCommunication refresher error: Failed to communicate with central server because of Connection timed out: connect

## Cause

The issue is usually related to a communication error between the server and the client. Varify there is no local firewall running on the client and make sure all network traffic is allowed for the listed ports below.

## Solution

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

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