So it seems that my raspian which is online via a wifi adapter is loosing its connection from time to time. Usually a powercycle helps an everything is back normal.

Now to avoid that i would like to regulary check if internet connection is available via a cronjob and if it is not, i would like to reload the wifi adapter.

How can i do that?

  • raspi is not a wearable platform. you should have used the ethernet, cable is cheap.
    – lenik
    Commented May 3, 2014 at 12:37
  • ethernet cable is not possible here.
    – clamp
    Commented May 4, 2014 at 7:13
  • Maybe the wifi adapter should be connected via a USB hub. The current drain on the Pi could be causing the connection to drop? Commented Jul 16, 2015 at 11:51

1 Answer 1


I'm unable to test this becuase all of my pis are headless, but you may be able to reset the wifi adapter by doing ifdown wlan0 followed by ifup wlan0.

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