You'll need to be connected to a Wi-Fi network to do most things on your HoloLens. What can I do offline?
Connecting for the first time
The first time you use your HoloLens, you'll be guided through connecting to a Wi-Fi network. If you have trouble connecting to Wi-Fi during setup, make sure your network is either open or password protected and doesn't require using certificates to connect. After setup, you can connect to other types of Wi-Fi networks.
Connecting after setup
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Bloom to go to Start, then select Settings .
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Use your gaze to position the Settings app, then air tap to place it, or say "Place."
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Select Network & Internet > Wi-Fi. If you don't see your network, scroll down the list.
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Select a network > Connect.
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Type the network password if asked for one, then select Next.