Hello @KE3JU ,

Welcome to our community.

Could you tell me specifically how it isn't working? For instance, is the wireless connection unstable, or is it automatically restarting?

Aside from the firmware update, did you modify any other settings?

We recommend sending an email to forumsupport.usa@tp-link.com  with the following information:

Subject: [Forum Escalation][ID 865048]  BE6500 Dual-Band WiFi 7 Router Firmware Fix?

Forum Nickname: KE3JU

Thread URL: https://community.tp-link.com/en/home/forum/topic/865048

Model&Version: Archer BE6500-v1-1.2.3 

Description: 

[Please provide further details regarding the router's performance after the firmware update]

Any Other Relevant Information: Please attach the configuration file and system log on your router for further investigation.

How to view and save System Log of TP-Link wireless router

How to create and restore from a backup file on your TP-Link Router

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.