1. Click the Apple icon, from the Apple drop-down list, select System Preferences.
2. Click the Network icon.
3. In the left column, select Ethernet (for wired connection) or Wi-Fi(for wireless connection), The connection you are using will say Connected next to it. Your IP address will be listed directly beneath your connection status, in smaller print.
Extend your WiFi to the backyard.
how to extend wifi range