Hi.. I did all procedure to connect as they explain.. At last step, screen says reboot the tp-link and I did so but the connection and all setup has gone.. I did several times setup to connect but  I had same error.. Everytime ı had to reset the device, reconnect with its own password..then 192.168.1254 then setup screen..bla bla..reboot screen..reboot then ..you have no internet connection error..then another cycle to setup..device problem..etc thanks