Ubuntu 斷網 及 Wired Connection 不見問題 === ###### tags: `Terminal Problem` `Ubuntu` **HackMD筆記開頭模板** Date : 2022/11/25 > [time=Tue, 06 Dec 2022 05:35:28 PM] > [name=N86101056蕭宇峯] <!-- File Name : adNOC_3Pb_water3Rain_kernels --> <!-- --- ## 目錄 * [物理參數](#物理參數) * [$\Omega$](#$\Omega$) * [操作步驟](#操作步驟) * [kernels.cuh](#kernels.cuh) : 凹面滑坡,中間有一塊凸起。 * [runkernels.cuh](#runkernels.cuh) : 凹面滑坡 --> --- 12/06 Ubuntu 20.04 重新開機後發現網路設定被洗掉,不但無法上網且有線網路接上卻一直連不上,setting/network的wired connection 選項也消失了。 ![](https://i.imgur.com/HgGFW2I.png) 解決辦法如下: ``` sudo gedit /etc/NetworkManager/NetworkManager.conf or sudo nano /etc/NetworkManager/NetworkManager.conf 将false改为true,保存退出。 如果已经是了,直接退出。 如果是用nano指令,完成編輯後按ctrl+X退出,按Y儲存後按Enter退出 sudo service network-manager restart 现在wired应该已经出现了,只不过显示unmanaged 然后执行 sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf sudo service network-manager restart 现在应该发现wired图标正常,且在settings里也可找到,禁用WiFi,也可以上网。 ``` ![](https://i.imgur.com/oOrupNR.png) 參考 [Ubuntu18.04 wired 消失解决](https://blog.51cto.com/u_204222/2465609) [Unmanaged network icon - Network manangement disabled](https://askubuntu.com/questions/2901/unmanaged-network-icon-network-manangement-disabled) --- 還有試過透過netplan更改,好像沒什麼用但還是紀錄一下 參考 [Ubuntu 20.04 網路設定](https://roychou121.github.io/2021/02/03/ubuntu-network/) ![](https://i.imgur.com/7ugde2p.png) ![](https://i.imgur.com/874Dd1Z.png)
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