Occational Network Disconnection Error On Ubuntu 20.04

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💡 This post is insightful for the following scenarios.

  • Network Error
  • Ubuntu Error

Background

When I installed my Ubuntu 20.04, it may meet some error because it could not use Wi-Fi module. Even I fixed it at that time, my computer sometimes can not connect to Internet now.

Step

Reset the network service

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sudo service network-manager stop
sudo rm /var/lib/NetworkManager/NetworkManager.state
sudo service network-manager start