If you would like the computer to stop automatically connecting to a wireless network then you need to follow these steps:

Windows XP

1. Double click on the Wireless Network Connection icon in the bottom right corner (near clock)
2. Click on Change the order of preferred networks
3. Under Preferred Networks, select the network eg SCU Wireless
4. Click on the Properties button
5. Click on the Connections Tab
6. Un-tick the box, Connect when this network is in range
7. Click on the OK button
8. Click on the OK button

Windows Vista

1. Click on the Wireless Network Connection icon in the bottom right corner (near clock)
2. Click on Network and Sharing Center
3. Click Manage Network Connections under Tasks
4. Right Click Wireless Network Connection
5. Select Properties
6. Click the Wireless Networks Tab
7. Select the wireless network eg SCU Wireless
8. Click Properties
9. Click on the Connections Tab
10. Un-tick the box, Connect when this network is in range
11. Click on the OK button
12. Click on the OK button

Windows 7

1. Click on the Wireless Network Connection icon in the bottom right corner (near clock)
2. Click on Network and Sharing Center
3. Click Manage Wireless Networks left menu
4. Select the wireless network eg SCU Wireless
5. Right Click the network
6. Click Properties
7. Click on the Connections Tab
8. Un-tick the box, Connect automatically when this network is in range
9. Click on the OK button
10. Click on the OK button