Verify Communication Ports

Applies To: WatchGuard Advanced EPDR This topic applies to the WatchGuard Advanced EPDR endpoint security product., WatchGuard EPDR This topic applies to the WatchGuard EPDR endpoint security product., WatchGuard EDR This topic applies to the WatchGuard EDR endpoint security product., WatchGuard EPP This topic applies to the WatchGuard EPP endpoint security product., WatchGuard EDR Core This topic applies to the WatchGuard EDR Core, available in the Total Security Suite license.

WatchGuard Endpoint Security products require that your firewall is configured to allow incoming and outgoing traffic on Transmission Control Protocol (TCP) port 18226 and User Datagram Protocol (UDP) port 21226. Endpoint security products use these ports to establish communication with an endpoint agent.

To verify that your Windows computer allows communication on these ports:

1. Press the Windows key + R.
2. Type cmd and press the Enter key.
   A Windows Command Prompt window opens.
3. At the command prompt, type:
   telnet <destination device name> 18226
4. At the command prompt, type:
   telnet <destination device IP address> 18226

If you are not able to connect to the destination device, contact Support.

Contact Support

If you have to contact Support, you can use the PSInfo tool to provide diagnostic logs to help Support troubleshoot your issue. For more information, go to Get Started with PSInfo.