If you have found yourself searching for "Seagate Network Assistant download Mac," you are likely in one of two positions: you are setting up a legacy device for the first time, or you are trying to reconnect a drive after a macOS update has broken your connection.
Seagate no longer heavily promotes this software for newer NAS models (like the IronWolf or MyCloud Home series). However, it is essential for legacy hardware. Do not download from third-party "driver download" sites; they often bundle malware. seagate network assistant download mac