I recently turned my pi into a standalone network following this guide: https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md But now when I open a web browser, or plug in a usb device it crashes and reboots and sometimes even gets stuck in a boot loop causing to to pull the plug and restart it. (USB crashes happen about 50% of the time something is plugged in). I really don't know where to start troubleshooting this problem. Where should I be looking? Any tips or things to look out for?

  • 3
    When you say you plug in a USB device, is it a USB WiFi 'dongle'? What version is your RPi? ver 3, 3B, 4, etc?
    – Seamus
    Feb 11, 2020 at 2:17
  • 4
    Which model of Pi? What PSU? Which OS?
    – CoderMike
    Feb 11, 2020 at 6:10
  • 1
    My first guess is that you're underpowering it, but it's a sWAG, so we need the details like @CoderMike asked for. Feb 11, 2020 at 11:40

1 Answer 1


Sounds like an undervoltage situation. Keep in mind that phone chargers aren't the best when used as a PSU. Get a better charger or buy the raspberry pi official PSU.

I used to have this problem as well.

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