WPA2 vs WPA3: Which WiFi Security Should You Use?
WPA3 is the newest WiFi security. Here is how it compares with WPA2, transition mode, and which option to pick on your router.
WPA2 and WPA3 are the security standards that encrypt your WiFi and check the password. WPA3 is newer and stronger, while WPA2 is still secure with a good password and works with almost every device.
WPA3 is newer and stronger, while WPA2 is still secure with a good password. For most homes use WPA2/WPA3 mixed mode, so new devices use WPA3 and older ones use WPA2.
Here is how they differ and which option to choose in your router settings.
WPA2 vs WPA3 compared
| WPA2 | WPA3 | |
|---|---|---|
| Introduced | 2004 | 2018 |
| Password handshake | PSK (4-way handshake) | SAE (Dragonfly) |
| Offline password guessing | Possible with a captured handshake | Resisted |
| Forward secrecy | No | Yes |
| Open network encryption | No | Enhanced Open (OWE) |
| Device support | Nearly universal | Most devices from 2019 on |
The offline-guessing row is the one I point at first when WPA3’s edge is unclear.
Which security mode should you pick?
- WPA2/WPA3 mixed (transition): best for most homes. New devices use WPA3, older ones WPA2.
- WPA3 only: strongest, if every device supports it.
- WPA2 (AES) only: fine if older devices fail with mixed mode. Use a long password.
- Avoid: WEP, WPA (TKIP) and open networks. They are easy to break.
The mixed-mode pick is the one I recommend for most homes.
How to change WiFi security on your router
- Log in to your router admin page. Find the address with our Router IP Finder, or try 192.168.1.1 or 192.168.0.1.
- Open Wireless or WiFi security settings.
- Choose WPA2/WPA3-Personal, or WPA2-PSK (AES).
- Set a password of at least 12 characters and save. Reconnect devices if asked.
The 12-character password is the step I never skip when security gets changed.
Problems after switching to WPA3
- Old device cannot connect: use WPA2/WPA3 mixed mode.
- Smart home gadgets drop: put them on a WPA2 guest network.
- Option missing: update the firmware; older routers may not support WPA3.
The old-device failure is the problem I see most after a WPA3 switch.
WPA3 compatibility at a glance
- Phones: most iPhones from iOS 13 onward and Android 10+ phones support WPA3.
- Laptops: Windows 10 (1903+) and 11 with a compatible WiFi card; most Macs from 2019.
- Smart-home gadgets: often WPA2 only.
- Older consoles and printers: usually WPA2 only.
If any device at home is WPA2-only, use WPA2/WPA3 transition mode. Newer devices get WPA3, older ones still connect. The WPA2-only gadget is the case I check first before recommending WPA3 only.
What about WEP and WPA?
WEP and the original WPA (with TKIP) are broken and can be cracked quickly. If your router offers only those, it’s time for a new router. Never choose them, even for a guest network. Open networks with no password should only be used with a captive portal or for public spaces.
For me, the TKIP-only router is the sign it is time for a new one.
What WPA3 changes under the hood
The biggest change in WPA3 is a new handshake called SAE (Simultaneous Authentication of Equals). With WPA2, someone who records your network’s handshake can take it home and try millions of passwords offline. SAE stops that: every guess has to be made live against your router, which makes brute-force attacks painfully slow.
WPA3 also brings forward secrecy, so even if your password leaks later, traffic recorded earlier can’t be decrypted. And on open networks like cafés, a related feature called Enhanced Open encrypts each device’s traffic without needing a password.
None of this matters much if your password is “password123”. WPA3 makes good passwords far stronger; it doesn’t rescue bad ones. The password123 line is the reminder I repeat most when WPA3 gets the credit.
A safe way to move your home to WPA3
- Check your router supports WPA3 (look for it in the wireless security dropdown).
- Choose WPA2/WPA3 mixed or transition mode first, not WPA3 only.
- Leave it a week and see whether any device drops off or refuses to connect.
- Update firmware on any device that struggles, or move it to the guest network on WPA2.
- Once everything connects happily, you can try WPA3 only if every device supports it.
If your router has a separate IoT or guest network, keep that one on WPA2 for older smart plugs and cameras, and use WPA3 on the main network.
The one-week trial is the step I never skip when a home moves to WPA3.
WPA2 and WPA3 on guest networks
Guest networks often host older phones and gadgets from visitors, so WPA2 or WPA2/WPA3 mixed mode is the safest choice there. Keep the main network on WPA3 or mixed mode for your own devices. Isolation on the guest network matters more than the encryption mode for keeping visitors away from your files.
For me, guest isolation matters more than the encryption mode on a visitor network.
