Hello  @mattfoss1959  & @Mega__Man ,

Thanks for contacting our community.

Here are the remaining steps worth trying:

1. Forget the network and reconnect
2. Change the router's wireless channel, try switching the 6GHz channel on your TP-Link Wi-Fi 7 router. 
3. Disable and re-enable the Wi-Fi adapter, go to Network Settings, disable the adapter, wait a few seconds, then re-enable it. Alternatively, restart your computer.
4. Disable any other wireless adapters, make sure no other wireless adapters (built-in or third-party) are active on your PC — only the TP-Link adapter should be enabled.
5. Move closer to the router, test the connection while physically near the router to rule out signal strength as a factor.
 

If these steps don't help, we recommend sending an email to forumsupport.usa@tp-link.com  with the following information:

Subject: [Forum Escalation][ID 859096] Archer TBE550E "can't connect to this network"- Archer BE9300 6ghz

Forum Nickname: Your community nickname

Thread URL: https://community.tp-link.com/us/home/forum/topic/859096

Model&Version: Archer TBE550E

Description: [User Provided]

Once sent, a ticket will be created in our support system, and a team member will follow up to gather more information or troubleshoot the case.