Hello @ShadowFreak ,

Welcome to our community.

If your devices are unable to detect the 6GHz network of your TP-Link router, please refer to the troubleshooting steps below:
    1. Open the Tether app and navigate to Tools > Wireless Settings. Ensure the 6GHz network is enabled and not hidden.
    2. Confirm that your client device supports 6GHz Wi-Fi, and that both the device drivers and operating system are up to date.
    3. Ensure that both your router and client device are being used in a country or region where Wi-Fi 6E/7 operation is permitted. If the router and client device were purchased in different countries, Wi-Fi 6E operation may not be available.
    4. Enable the 6Ghz of guest network on the router for comparison.

For further information, please refer to: What if my device failed to detect the 6 GHz Wi-Fi Band

In addition, please help collect the following suggestions:

• The models and OS of your clients.
• The firmware version of your router.