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Solve The Problem of Unstable WiFi Connection On Ubuntu OS

Posted on Edited on In
704 1 mins.
After a period of hard word, I install Ubuntu OS on my Microsoft surface Pro 3 successfully. However, there are a few ghost failures that greatly affect the user experience, such as WiFi connection unstable.

Description

  • PC: Microsoft Surface Pro 3
  • OS: Ubuntu 20.10
  • PROBLEM: After the system wakes up from sleep, WiFi cannot automatically reconnect unless restarted
  • REASON: Power Save service BUG

Solution

Temporary

Turn off Power Management

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# turn off the power management
sudo iwconfig <your connection eg:wlp1s0> power off
# check the status
sudo iwconfig
  Power Management:off

Permanent

Above you will turn off the power management for one time, it will turn on in next reboot. If you want to close it permanently:

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# modify the power management configuration
sudo vim /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
  [connection]
  wifi.powersave = 3
# replace this value with 2, save it
# reboot, and check the status
sudo iwconfig
  Power Management:off

Congrats, the WiFi connection will be stable now.