This short guide is for the users who already have a Cable Modem such as a Virgin media modem and want to share the Internet connection.
Step 1: Preparation
Before the beginning, refer to this article: What do I need to prepare before begin to install TP-LINK Wireless Router (see related links for details)
Step 2: Connect your Network
(1) Turn off your Cable modem, router and computer.
(2) Connect the WAN port of the router to the Cable modem with an Ethernet cable.
(3) Connect your computer to any of the LAN ports (yellow one) of the TP-LINK router.
(4) Power on your router and computer. Don't power on the modem before logging into the router.
Step 3: Log into the router (web-based Interface)
(1) Power on your router and computer, open the web browser and in the address bar type in: http://192.168.1.1 or http://192.168.0.1 or http://tplinklogin.net. Then press Enter.
The LAN IP changes by model. Please find it on the bottom label of the product.
(2) Type the username and password in the login window (both admin by default), then click OK.
After logging into the router, Click Network->MAC Clone on the left side.
Click Clone MAC Address to clone your PC's MAC address to WAN MAC Address of the router.
Click Save to save the settings.
Step 7: Configure WAN Connection Type
Click Network > WAN on the left of the web page:
If your ISP provides static IP address for you, please select Static IP as the WAN Connection Type. Otherwise please select Dynamic IP to get IP address automatically from your ISP.
Enter the IP information provided by your ISP into the boxes shown as below, then click Save button. Wait about 2 minutes, if you can't connect to the Internet, please skip to the Step 9.
Click Status on the left side. Under WAN section, click Renew button. Wait about 2 minutes, then an IP address will be assigned. If it doesn't get an IP address or time out, skip to Step 9.
Step 8: Wireless Setting
If your router is a wireless router, you need to configure the basic wireless settings for your wireless network. Then continue settings with Step 9.
Step 9: Power cycle the cable modem and router
After the configuration, powering cycling your network can ensure everything is correctly setup.
Note: In some cases, you will need to change the LAN IP address of TP-LINK Router to avoid an IP conflict with the Cable modem.