Fix slow Wi-Fi on the Raspberry Pi

You have a Raspberry Pi with a USB Wi-Fi dongle and you experience:

  • Very slow speed when using apt and other network-related commands involving downloads
  • Intermittent keyboard freezes when in an ssh session
  • High packet drop rate when using ping -c 10 (more than 30%)

Switching from a 2A to a 3A power supply resolved my issues.

My setup is a Raspberry Pi A+ with only the dongle connected (not anything else). I bought this one and it's working great.

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