To use your preferred Wireless Internet access, you have to connect to your private WiFi signal.
Enter the WiFi manager of your operating system and chose the desired WiFi signal.
(In Windows you can check by doing Right-click on the wireless network icon in the lower-right corner of your screen, and then click View Available Wireless Networks.)
You can change what network your computer connects by:
go to Control Panel\Network and Internet\Manage Wireless Networks
Here you can now reorder the connection priority.
The order Preferred networks are listed here determines the order that Windows will automatically attempt when seeking to make a wireless / Internet connection.
You can move up and down networks, to change priorities.