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One of the more documented issues users have experienced with their Acer C733 Chromebook is the device dropping Wi-Fi and not regaining it. While there can be many reasons for a device to drop the Wi-Fi signal, there is a particular instance of this that is specific to the C733's design.
Specifically, this is caused by the placement of a rubber spacer near the M.2 slot on the device's logic board. If that spacer isn't in the correct place, then it can cause the logic board to flex whenever the computer is moved. This will result in the pins in the M.2 slot bending out of place and will result in the Wi-Fi card not having a proper connection.
While this guide will walk you through how to go about making this adjustment, there is also an official PDF provided by Acer that is featured on the iFixit Acer C733 page and in this guide.
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Make sure your device is powered off
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Close your Chromebook and flip the device over so that the bottom of the case is facing up.
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Remove all 12 case screws from the bottom of the case.
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The battery is only held in place with a piece of ESD Tape. Using a set of tweezers, carefully peel away the tape from one end.
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Once the tape is removed, carefully unplug the battery from the logic board.
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Remove the M.2 Screw, and unplug the Wi-Fi Card from the Logic Board.
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Using a set of tweezers, carefully remove the rubber spacer from the logic board.
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Once the spacer is removed, place the new spacer in the same area as shown.
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To reassemble your device, reconnect the battery and snap the bottom panel back on, and reinsert the case screws.
To reassemble your device, reconnect the battery and snap the bottom panel back on, and reinsert the case screws.
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