My MacBook Can't Connect to the Network (4 Steps)

Check the cable connection running from the network hub or modem into your MacBook computer. If the cable is not inserted completely into either device, the MacBook is unable to detect the network.
Power on the network hub or modem. If the power is shut down, the computer is unable to detect the network.
Activate the Wi-Fi connection on the MacBook. Your computer may be attempting to connect to a different wireless source. Click the wireless icon in the upper left corner of the desktop, and then choose the Wi-Fi network you want access to. Type in any required password and click 'OK' to connect to the network.
Move closer to the origin of the network. If you are out of range of the Wi-Fi network, the MacBook is not going to connect to the wireless signal.
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