How do I turn on WPA2/WPA3 security on my iPhone 16 Pro Max?

I accidentally turned off WPA2/WPA3 security on my iPhone Pro Max 16 Pro Max. How do I change it back?

WPA2/WPA3 are settings on a router for a local network/​home network, not on your smart phone when connecting to a Wi-Fi network. I’m pretty sure that your iPhone doesn’t have settings to turn it off.

WPA is set out to protect the communication between devices and the router, by encrypting the data. Even the latest version WPA3 has its weaknesses though.

Recommended settings for Wi-Fi routers and access points - Apple Support

Security features when connecting to wireless networks - Apple Support

Wi-Fi Protected Access - Wikipedia

Where do you see anything about this to raise your concerns about it?

If the Wi-Fi network shows to be open/​no password/​unprotected (no lock) on your phone, then that is a discovered setting for that network, not for your phone.

All Wi-Fi certified hardware since July 1, 2020 has mandatory support for WPA3. iPhone 7 or later (2016–) already supported WPA3.

laure128 (Author)

Perhaps your settings at routers and access points need to be checked

and re-set to be certain they are in working status. Most would be able

to automatically find their correct settings; but appears yours won't..

Recommended settings for Wi-Fi routers and access points - Apple Support

//support.apple.com/en-us/102766

Several selection choices and various means are suggested in this article.

..While discovering many more ~ may require significant time and effort..

And these have security protocols that have been updated over time.

Yours may require some 'firmware updates' if no longer correctly enabled.

If your iPhone or iPad won't connect to a Wi-Fi network - Apple Support

//support.apple.com/en-us/111786

search/results:

https://duckduckgo.com/?q=troubleshooting+wifi+settings+iphone&t=ftsa&ia=web

How to Find Your Network Security Key Quickly

https://www.wikihow.com/Find-Network-Security-Key

WEP, WPA, WPA2, WPA2/WPA3 device management settings for Apple devices - Apple Support

Apple Platform Security - Apple Support

//support.apple.com/guide/security/welcome/web

Apple Platform Security - (Table Of Contents) Apple Support

//support.apple.com/guide/security/toc

Report a security or privacy vulnerability - Apple Support

..There's plenty more ~ Troubleshooting should be a Gas..