Finding out that your Lenovo Thinkpad T42 wireless doesn’t work? This problem often occurs when updating Access Connection. Follow these steps below to make it work again:

T42 Wireless Problem
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Download laptop drivers from Lenovo website (don’t install it from Intel website). The drivers you should download are: Intel Driver, Hotkey, ACPI Power Management, and Access Connections.
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Navigate your notebook to Control Panel
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Uninstall Access Connections and Intell Wireless driver
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Restart your machine
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Install Hotkey driver you have downloaded before
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Reboot again
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Install Intel driver you downloaded
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Reboot
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Test your WiFi button using Fn+F5 on your keyboard to toggle Wireless function
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Reinstall Access Connections if it works
Hope this will get your WiFi running again and you can connect to the network or internet.
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