@Pudens Hello, you can use the single TL-WPA4220 as an access point to boost wifi signal. Due to the lack of main adapter/powerline connection, we have to connect the TL-WPA4220 to the main router by...

@wobble Thanks for your reply. Yes, you can use the single TL-WPA4220 to boost wifi signal. While cause there is no main adapter anymore, to make TL-WPA4220 work first, we need connect it to the main...

@rwarda Hello, can you log into the web UI of Archer C7? If it works, you can use the same credentials to log into the Tether app. With this error message, can you access internet from the C7 and get...

@Tonmoy Hello, what is the model number of your TP-Link device? And what is the hardware version? You can find them on the back of the actual device. Meanwhile, from the error message, the current...

@Mkmkmk Hello, what is the model number of your TP-Link device? And may I know why do you want to change the email address of your account? Thanks a lot.

@Black_Canary Try the default password first which is admin, if it does not work, I'm afraid that you have to reset it like Selin said and re-login with admin. Good day.