@Mikey_D Are you using Archer C6 as well? Ensure the router is running the latest firmware, ensure you are using the latest Tether app on your phone. When you type in the correct TP-Link account...

@Laser50 Just to confirm, how did you transfer the files in the network? Wired device in the LAN to the SSD? Or LAN device to another LAN device? Which USB interference option do you refer to? Can I...

@Elon92 Hello, Can you manage the A9 remotely from an outside network when logging to your TP-Link account? If yes, please confirm if you can re-bind your TP-Link account to the Alexa devices:...

@Sandstrom Hi, thanks for reporting the issue you are experiencing. May I have the exact model number of the AC1200? Is it Archer C6 or Archer C1200? It is suggested to try the previous suggestions...

@VK197607 Did you follow this guide to configure the Access Control on the C20 for both the wired and wireless clients? Ensure you type in the correct MAC address of that wired device.

@mridwann You are suggested to open your own issue on the below sub-forum: https://community.tp-link.com/en/home/forum/123