How to configure the access control (ACL) on TP-LINK DSL router
Step 1 Open the web browser and type the IP address of the device in the address bar (default is 192.168.1.1). Press Enter.
Step 2 Type the username and password in the login page, the default username and password both are admin, Then click OK to log into the device.
Step 3 Click on Management->Access Control->Services on the left side
If you want to remote access your router via Internet, please enable HTTP for WAN, then click on Save/Apply.