WPA2 and WPA3 are Wi-Fi security generations used to protect wireless access. The practical choice depends on what the router and every client device support.
WPA2-Personal
WPA2 with AES/CCMP remains widely supported. Avoid legacy TKIP modes where modern alternatives are available. Security still depends heavily on using a strong, unique passphrase and keeping router/client firmware current.
WPA3-Personal
WPA3-Personal uses SAE rather than the traditional WPA2-Personal pre-shared-key handshake and improves resistance to certain offline password-guessing scenarios. Protected Management Frames are also part of the WPA3 security model.
Transition mode
Many routers offer WPA2/WPA3 mixed mode so newer clients can use WPA3 while older devices continue using WPA2. This can be useful during migration, but the network still has to accommodate the security capabilities of legacy devices.
Guest and IoT strategy
If one old smart device prevents stronger settings on the main network, consider placing legacy/IoT devices on a separate network when the router supports suitable isolation.
WPA2-Personal and WPA3-Personal
WPA2 commonly uses PSK with AES/CCMP; WPA3-Personal uses SAE and strengthens resistance to certain offline password-guessing scenarios. WPA3 also expects protected management-frame behavior.
Transition mode
Mixed WPA2/WPA3 allows legacy and new clients to coexist but security/compatibility still depends on each client. Update firmware/drivers before blaming the router.
Passphrase quality still matters
Use a strong unique Wi-Fi passphrase, disable obsolete WEP/TKIP modes and isolate legacy IoT if it prevents stronger main-network settings.