To add a network protocol to the computer, do the following to retrieve a list of available protocols. Windows 7, 8.1 and 10 1. Start menu/Control Panel/Network & Sharing Center. 2. Click Change Adapter Settings. 3. Right click Local Area Connection. 4. Select Properties. 5. Click Install/Protocol/Add. Windows XP (Control panel must be in Classic View) 1. Start menu/Control Panel/Network Connections. 2. Right click Local Area Connection. 3. Select Properties. 4. Click Install/Protocol/Add.