I checked my router and I have it as
Version: WPA2-PSK
Encryption: AES
This is a dual band router, 2.4GHz and 5GHz.
Yet, when my wife's iPhone updated to 14.1 it says "Weak Security".
I read the article provided above.
The only thing I can think up is I may need to update my firmware.
I named my 2.4 and my 5 bandwidths separately, because for streaming movies, 5GHz is the way to go and for normal remote work, (terminal access, etc.), 2.4 is fast enough, and I would rather not hear the complaints about crappy watching experiences if they're randomly assigned a 2.4GHz channel while watching a video/movie/work presentation. But that's one of the suggestions.
Since, I'm using this WPA2-PSK with AES encryption, should I be OK?
According to this article from 3 years ago, WPA2-PSK with AES encryption, is the best.
https://www.howtogeek.com/204697/wi-fi-security-should-you-use-wpa2-aes-wpa2-tkip-or-both/
"
- WPA2-PSK (AES): This is the most secure option. It uses WPA2, the latest Wi-Fi encryption standard, and the latest AES encryption protocol. You should be using this option. On some devices, you’ll just see the option “WPA2” or “WPA2-PSK.” If you do, it will probably just use AES, as that’s a common-sense choice.
"