“This is the fifth day of my participation in the Gwen Challenge in November. Check out the details: The Last Gwen Challenge in 2021.”

Hi, family, I’m bug bug, here I go again. Let’s talk about something today. OK, let’s continue with the Ubuntu series. Listen and learn! Good cut?

I. Background introduction

Environment: Ubuntu20.04

Abstract: Very strange, Ubuntu shut down after a day, the third day boot found not connected to the Internet, Baidu ping is different, how to do, the reason is puzzled, first try how to solve it! Don’t delay normal development, you tell me.

Below is the screenshot of the failure to connect to the Internet. Is there any friend who has the same interface with me? Even the wireless logo has disappeared.

Second, solutions

1. Check again whether you can connect to the Internet and ping the Baidu website; Open the terminal and enter the following information

ping www.baidu.com
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2. If ping fails, stop the network service first

service NetworkManager stop
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3. Delete NetworkManager cache files

rm /var/lib/NetworkManager/NetworkManager.state
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4. Restart network services

 service NetworkManager start
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After you restart the network, if it still does not work, then continue to look.

5, and then modify the directory/etc/NetworkManager/NetworkManager conf file

// manage =trueCopy the code

6. Restart the network service after modification

service network-manager restart
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7, OK, networking icon flash appears, open the Settings to look, it also shows that the network.

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8, you can ping a wave of Baidu website, or into the browser to browse a web page, found that the network is normal.

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The above is the whole process of solving Ubuntu Internet failure. Meanwhile, you are welcome to leave comments below. You can solve the above problems or extend the problems.

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