Select Start --> Control Panel--> Network Connections (depending on the view set up, this might also be labeled Network and Internet Connections)
Right click Local Area Connection, then click Properties
In the General information tab, make sure that Internet Protocol (TCP/IP) is checked and highlighted, then click Properties
On this screen, make sure that the "Obtain an IP address automatically" radio button is selected. The "Obtain DNS server address automatically" should also be selected
Click "OK" on all the opened windows to close them
Restart your computer if prompted
Open Internet Explorer
On the IE menu bar, click Tools, then Internet Options
Under the Internet Option dialog box, click the Connections tab and then the LAN Settings button
In the LAN Settings dialog box, click “Use a proxy server for your LAN”
Enter 10.50.0.20 in the Address: field and 8080 into the Port: field (You may need to uncheck the Use automatic configuration script box)
Click OK twice
Select Start --> Settings--> Network and Dial-up Connections
Network and Dial-up Connections box will appear
Select the Local Area Connections Icon
Local Area Connection Status box will appear
Click on Properties
Local Area Connections Properties box will appear
Highlight Internet Protocol (TCP/IP)
Click on Properties
The Internet Protocol (TCP/IP) Properties box will appear
Click on Obtain an IP address automatically
Click on Obtain DNS server address automatically
Close out all windows by clicking OK
Open Internet Explorer
On the IE menu bar, click Tools, then Internet Options
Under the Internet Option dialog box, click the Connections tab and then the LAN Settings button
In the LAN Settings dialog box, click “Use a proxy server for your LAN”
Enter 10.50.0.20 in the Address: field and 8080 into the Port: field (You may need to uncheck the Use automatic configuration script box)
Click OK twice
Select Start --> Settings --> Control Panel
Select Network
In the Network box select the NIC card you are using under TCP/IP
Click on the card in use and then click on Properties
TCP/IP Properties box will appear
Click on the IP Address tab
Click on Obtain an IP address automatically
Click OK for all windows
Open Internet Explorer
On the IE menu bar, click Tools, then Internet Options
Under the Internet Option dialog box, click the Connections tab and then the LAN Settings button
In the LAN Settings dialog box, click “Use a proxy server for your LAN”
Enter 10.50.0.20 in the Address: field and 8080 into the Port: field (You may need to uncheck the Use automatic configuration script box)
Click OK twice
Make sure that your AirPort card or external PC card is installed properly per the manufacturer's instructions. In the case of an external PC card for a non-AirPort capable Mac OS laptop, make sure that the PC card is firmly inserted into the PC card slot.
Mac OS X includes the drivers that are necessary to use AirPort for network connectivity. All that need be done is select an active wireless network and make sure Network settings are correct for the wireless network.
Using either the AirPort Menu or the Internet Connect application, you can select a wireless network that is in range. If AirPort is off, you will need to select "Turn Airport On" before you can proceed. AirPort Menu: Internet Connect Application:
Select the wireless network from the list of available networks.
Choose System Preferences from the Apple menu. Once the application is started, select Network. Click on the TCP/IP tab.
Make sure that the Show menu is set to AirPort, and that the Configure menu in the TCP/IP tab is set to Using DHCP. If AirPort doesn't appear in the Show menu, choose Active Network Ports and Activate Airport. Then choose Airport from the Show menu.
Click the Apply Now button at the bottom of the panel to save the changes you just made and quit the System Preferences application.
Click on the Apple icon and go to System Preferences.
Double click on the Network icon.
Use the drop down arrow under show to click on Built in Ethernet.
Click on Proxies from the horizontal tab bar.
Tick Web proxy and enter 10.50.0.20 Port 8080.
Tick Secure Web proxy and enter 10.50.0.20 Port 8080.
Click Apply Now to exit out of the Network Box.
You can now launch your web browser (Safari or Internet Explorer).
Make sure that your AirPort card or external PC card is installed properly according to the instructions included with the card. In the case of an external PC card for a non-AirPort capable Mac OS laptop, make sure that the PC card is firmly inserted into the PC card slot.
Make sure you have installed the latest version of the AirPort software (version 1.3.1). You can verify this by running the AirPort application and selecting About AirPort from the Apple Menu.
If the AirPort Setup Assistant did not automatically run after installation, you can manually configure your network settings to use the AirPort wireless card by using the next section’s instructions.
Using either the AirPort Control Strip Module or the AirPort application, you can select the wireless network that is in range.
Select the library wireless network from the list of available networks
Next, go to the Apple Menu, to Control Panels, and select TCP/IP.
At the TCP/IP window, you should see the following selections:
Make sure that Connect via is set to AirPort, and that Configure is set to Using DHCP Server.
Close the TCP/IP control panel, saving the changes you just made when prompted.
From the Edit Menu Choose Preferences
Click Proxies under Network
Check Web Proxy
Click Settings
Enter Address as: 10.50.0.20
Enter Port as: 8080
Leave or set Method as: Normal
Leave User Name and Password blank
Click OK
Check Use Web Proxy for All
Click OK
You can now launch your web browser (Safari or Internet Explorer).
