How to use your TP-Link N router as an access point. The main router will be connected to the TP-Link N router via LAN port (as seen below). The WAN port is not used for this configuration.
Connect your computer to a second LAN port on your TP-Link N router using an Ethernet cable.* Login to the TP-Link web interface through the IP address listed on the label on the bottom of your TP-Link N router (see below link for assistance)
Choose your connection type (Wired or Wireless)
Step1a: If Wireless, connect to your TP-Link wireless network. Find the wireless network (named TP-LINK_xxxxxx by default which is printed on the label of the router) from the WiFi list on your device and connect it with the wireless password (default password is printed on the router’s label as well).
Step1b: if Wired connect your Ethernet cable to one of the LAN ports on the back of your TP-Link router.
Open a web browser (i.e Safari, Google Chrome or Internet Explorer). At the top of the window in the address bar, type in http://tplinkwifi.net. Note: The default access address differs by model. Please find it on the bottom label of the product. Step 3 Type the username and password in the login page. The default username and password For TP-Link devices is admin. Enter your own username and password instead of admin if you already changed it.
Go to Network>LAN on the side menu and change the LAN IP address of your TP-Link N router to an IP address on the same segment of the main router. This IP address should be outside the main router’s DHCP range.
Example: if the DHCP of your main router is 192.168.2.100 – 192.168.2.199 then you can set the IP of the TP-Link N router to 192.168.2.X (X should be outside your main router’s DHCP range), like 192.168.2.11.
Go to Wireless>Wireless Settings and configure the SSID (Network name)which can be the same or different from the main router’s. Select Save.
Go to Wireless > Wireless Security and configure the wireless security recommended as the most secure option. Once configured, click Save.
Go to DHCP>DHCP Settings and select Disable the DHCP Server. Select Save. Go to System Tools>Reboot and select Reboot to reboot the device.
Use an Ethernet cable to connect the main router to your TP-Link N through their LAN ports (any LAN ports may be used). All other LAN ports on your TP-Link N will now grant devices Internet access. Alternatively, any Wi-Fi device can now access the Internet through your TP-Link N router by using the SSID and Password set up in the above steps.