@Rudi-F 

Could you share a bit more about how the connection isn't being accepted? For example, does your AX210 Wi-Fi adapter not detect or display the AX73's SSID (on all bands)? 

Or does the difficulty establishing a connection occur at another step in the connection process, like when attempting to join the network? Knowing where the connection difficulty occurs will help us better determine the cause.

Also, could you please share the exact driver version of your AX210 Wi-Fi adapter?

  @Rudi-F 

Thanks for confirming. A few things that come to mind that I would recommend are:

1. If you haven't yet, please forget the network and reconnect to it: How to Forget a Saved Wi-Fi Network on Windows 11
    
2.  It looks like a slightly newer driver may be available for your adapter. I'd suggest downloading and installing it: Intel® Wireless Wi-Fi Drivers for Windows® 10 and Windows 11*
    
3. Check for any MAC Filtering or Access Control List block settings on the router to make sure your PC isn't somehow being blocked from accessing the network:
    
   1. How to configure the Wireless MAC address filter onTP-Link Wi-Fi Router
       
   2. How to set up access control on wireless router (new designed blue UI) | TP-Link

Hopefully one of these does the trick, but if the behavior persists, let us know.