How to fix Wired / Wi-Fi Network Device Not Managed Issue

How to fix Wired / Wi-Fi Network Device Not Managed Issue

After a recent reboot it stopped working, saying “device not managed” and you won’t be able to connect to internet. This error only happened if you’re using Network Manager to manage the network connection. For most of the time, this program works flawlessly, but it is not perfect. Now, you’re facing the problem with Device not managed issue by NetworkManager
With my exprienced, it does seem happen to Wired and Wireless Network Interfaces.

If you got this problem and this guide takes you through step by step procedures on fixing “Wired / Wi-Fi Network interface Device not managed error” in almost Linux distros from Ubuntu, Debian, Fedora, Arch Linux, Kali Linux and more …

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Help Printed

Add new printer, system isn’t show the driver list

Sometimes, after install and configuration cups for printing, you can’t get the list of printer driver list although you have been installed necesary parkages. Whenever you try to add using any of the available protocols CUPS spits this incredibly helpful error message out:
Unable to get list of printer drivers: "Success"
I spent an hours for researching about that problem then it fixed and work flawlessly. Here is my solution to fix the problem with Canon LBP2900:

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