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I have connected my pi 3 to wifi network but I want it to be connected again to the same network even when it is turned off and then turned on again. How can we do it?

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  • Are you using Raspbian? How did you connect to the wifi network initially (e.g. manually inserting credentials into /etc/wpa_supplicant/wpa_supplicant.conf, into '/etc/network/interfaces` or using the Pixel GUI)?
    – Fantilein1990
    Nov 8, 2016 at 13:56

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Assuming you are using an up to date Raspbian:

Your wifi credentials (network name aka SSID, password) are saved in /etc/wpa_supplicant/wpa_supplicant.conf. If wifi is enabled (which it is by default), it should automatically reconnect after a reboot using those.

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