How to change the name or password for WiFi TP-Link TL-WR840N
Open browser tab
In the address bar, enter 192.168.0.1
In the opened window, in the fields - “username” and “password”, you need to write - admin, then click on “Log in”.
Open the “Wireless” section
Then "Wireless Settings"
In the field "Wireless Network Name" - write down a new name for WiFi.
Click Save
Open the “Wireless” section
Then «Wireless Security»
Select the line "WPA / WPA2 - Personal (Recommended)"
"Version" - choose WPA / WPA2 - Personal
In the “Wireless Password” field - write down the new password for WiFi (at least 8 characters).
Click Save