hello @Kevin_Z
Thank you for letting me know this option "Except the wifi button on the back panel, you can log into the web UI of the Archer C6 and turn off the wifi function, you need press the wifi button or log into the web UI with wired connection again to re-enable it."
I run into issues with gettin accces to the Wireless option. I bought router only yesterday and I quick setup Wifi connection with password for both 2.4ghz and for 5.0ghz as well when I was wired connected with the router. I also updated the firmware through Tether and later at night I found out I´m not able to get into the Wireless option on side panel Wireless setting...it is still loading like and couldnt accces it to change the connection like you said to turn off wifi function by pressing wifi button through wired connection.
Shall I reset the router and adjust everything again ?