How to Restore Proxy Settings (3 Steps)

Launch Internet Explorer. Click 'Tools' from the menu bar, then select 'Internet Options' from the drop-down list. The Internet Options window will open.
Click the 'Connections' tab, then select the 'LAN Settings' button. Select the check boxes next to 'Automatically detect settings' and 'Use automatic configuration script' in the 'Automatic configuration' section.
Click the check box next to 'Use a proxy server for your LAN' in the 'Proxy server' section, then click 'OK.' Click the 'Apply' button, then 'OK' and restart Internet Explorer.
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How to Connect a MacBook to the Internet (7 Steps)

Evaluate the type of Internet connection you will use to connect your MacBook to the Internet. There are four types of connections you can use, according to the MacBook User's Guide: AirPort wireless connection, modem, Ethernet or dial-up.
Gather any pertinent information you will need to access the connection. Often wireless and Ethernet or LAN networks require an IP address, and are secured with a user name and password which will be required to gain Internet access.
Open the System Preferences menu from the Apple drop down menu in the top left corner of your screen.
Click on the Networks tab within the System Preferences pane and choose your mode of connection (AirPort wireless connection, modem, Ethernet or dial-up).
Enter any required information such as password. The Set-Up Assistant will help walk you through the process of establishing your Internet connection.
Plug any wires or cables into the computer. This is necessary when you are connecting to a phone line for dial-up Internet or a modem device.
Open your internet browser to ensure you have properly established an Internet connection.
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