
To check this, click on the ESET icon on your menu bar (top right corner of the screen), click Preferences., click Firewall and ensure your Filtering mode is Auto with exceptions. Some VPN Applications or other third-party applications are known to automatically keep switching the macOS firewall off in the background, but ESET should not be automatically doing this as it instead usually asks you to manually turn it off yourself via System Preferences.įor the cause of your internet connection switching on and off, I would first check if ESET's firewall mode is set to automatic instead of interactive. Based on this, ESET's firewall gives you further protection with your Mac and the Internet. ESET's firewall can filter both incoming and outgoing connections, and depending on your preferences, you can really get into details of specifying TCP/UDP, the ports, IPs/URLS, etc. In terms of which firewall is 'best', the macOS firewall in System Preferences can only filter incoming connections (when an application like Spotify on your Mac wants to let things from the Internet connect inside your Mac in a special way), and does not do outgoing connections (such as an application on your Mac wanting to send something somewhere on the Internet in a special way). If you wish to continue using the macOS firewall, it would be best to uninstall Cyber Security Pro and to install Cyber Security instead, as it does not have a firewall, and your license should still work with this version. When installed, ESET recommends that you disable the built-in firewall in macOS in order to use their firewall. If you have ESET Cyber Security Pro, this does come with a firewall.
