You can change TP Link extender login  details either using the manual method or with the help of the TP Link extender app. Below we are going to explain the step-by-step instructions on changing the TP link WiFi extender login details using the TP Link Tether app. 

• Launch the TP Link extender app on your smartphone. 
• Get access to the app interface of your extender using the default TP-Link extender login  details. 

Also read:- A Guide to Access TP Link Extender Login Page