Many small and even midsize businesses default to using the personal or pre-shared key (PSK) mode of WPA2. Despite its name, the enterprise mode isn’t only for large networks; it has a place in all businesses. The enterprise mode uses 802.1X authentication, which provides an extra layer of security for a network. Though it does initially require more effort and resources to set up, you’ll need a Remote Authentication Dial In User Service (RADIUS) server or service.”]
Source: https://www.csoonline.com/article/2934602/how-to-use-enterprise-wi-fi-security-in-smbs.html