@PhilippBuxbaum I forgot to mention that one oddity of Realtek's drivers is that they will only switch the Wi-Fi adapter from USB 2 mode to USB 3 mode upon the first attempt to establish a Wi-Fi...

@PhilippBuxbaum Personally I've never had any such issues with computers based on Intel hardware, but on both of the AMD-based computers I own these Realtek USB Wi-Fi adapters don't work stable in...

@PhilippBuxbaum Hi, Being physically plugged into an USB 3.0 port doesn't necessarily mean the device is actually running in USB 3.0 (SuperSpeed) mode. I recommend you use some software like SIV...

@Chetas Hi, How did the service provider attempt to reset the router? I mean, did they come to your home to do it or did they try to do it remotely from their office? In case it was the latter, then...

@TrixMan Hi, For which operating system? Also, what is the hardware version of your TL-WN821N? (V1 to V3 use Atheros, V4 to V6 use Realtek)

One more observation. It looks like you are trying to downgrade your Archer AX23 from firmware version "1.1.0 Build 20230725" to the older version "1.0.5". Is there a particular reason for that?...