ZyXEL Communications ZyWALL Troubleshooting Manual page 13

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Type "firewall.cpl" and click OK or hit the Enter/Return key.
Select the option to "Turn Windows Firewall on or off" on the left.
Disable the firewall by selecting the "Turn off Windows Firewall"
and click the OK button to save the settings.
Note:
If you're using a third party software firewall, Trend Micro, Norton, McAfee,
etc., please open the softwares control panel and disable the firewall feature.
macOS: To disable the firewall on macOS open System
Preferences  Security & Privacy, click the Firewall tab and press
the "Turn Off Firewall" button to disable.
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