@Solla-topee Hi,

Thank you for your speedy reply. The warning is shown on both Windows and Apple devices. My OS versions are 

• macOs Big Sur 11.5
• iPhone 14.7.1
• Windows 10 Pro 21H1

Unfortunately, I can’t take any screenshots since I decided to go back to my old extender (a TP-Link powerline extender), that I can easily configure to only use WPA2-PSK AES and consequently no warning messages occur. I bought the TL-WA1201 in order to use the 5GHz band but the signal is too weak anyway. 

I believe it would be a good thing if the TL-WA1201 could be configured to only use WPA2-PSK AES when used as a range extender. This is possible if you use it in client mode or in multi-SSID. 

@Solla-topee Hello,

My router is an Arris Mitrastar GPT-2541GNAC for fiber optics. It’s configured to use WPA2-PSK AES on both bands (2.4 GHz / 5GHz). It doesn’t support WPA3.

The TL-WA1201, if used as a range extender, can only be configured with WPA/WPA2-PSK personal and you cannot choose between AES and TKIP. Both Windows and Apple devices show the weak security warning.

My old AV500 Powerline (TL-WPA4226) can be configured to only use WPA2-PSK AES. No warning messages on Windows nor Apple. However, only works well on Apple, is very unstable on Windows with this security.

Incidentally, I also have a RE580D and it can be configured to use only WPA2, but you cannot choose between AES or TKIP encryption. With this range extender I don’t get any warning message on Windows, but I still do on all Apple devices. The RE580D v1.0 gives me a very stable connection. (FW 20171220 rel. 57215(EU)) and is clearly the best solution at the time being.

If I connect directly to the Mitrastar router, without any range extender, no warning messages are shown on any device regardless OS.

Below a screenshot of the warning message when connected to RE580D on my Mac. Weak security (WPA) despite the fact that it is configured with WPA2?

@Solla-topee

I recently purchased the TP-Link WA1201 platform and am having the same TKIP security concerns.  It came loaded with the most recent firmware, which is the same as the OP indicated.  Many of the RE models have had their firmware corrected.  It's 2022, and the security risks of connecting legacy devices with weak security should be an option and not forced on customers.

Does your team have an estimated time to issue upgraded firmware?

  @Solla-topee 

hi i have 2 range extenders model TL-WA855RE version 4 UK which I've followed your instructions given elsewhere on the forum by updating the firmware to latest. Reset and re associate with my home network the Router of which has already got WPA2 security and the extenders have different ssid than router but after all the deeds you've described i still get weak security according to iPhone ios 15.4.1. Is there anything else you can do to sort this on font problem please?