Questions tagged [network-manager]

NetworkManager is the default networking suite for Ubuntu. It is a set of co-operative tools developed by GNOME. The NetworkManager service can be controlled using the nmcli tool (Network Manager Command Line Interface) as well as by its GUI.

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Almost no item in network config of GUI setting on Ubuntu 18.04

I am new to Ubuntu and I just installed a VMWare VM of Ubuntu 18.04.6. After I installed the GUI, I find there is almost nothing in the network config area of GUI setting so that I cannot config the ...
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Internet doesn't work on specific network after connecting to enterprise network

Ubuntu 20.04 LTS Everything worked flawlessly before. Connected to a WPA2 Enterprise + PEAP + MSCHAPv2 network at work. After that, WPA2 Personal network stopped working at home. It authenticates ...
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Network Manager in ubuntu 18.04 crashes and I've to reboot everytime

I use ubuntu 18.04 and the wireless crashes in every 1 hour. The network setting says the network manager is not running. How to resolve this? I tried sudo service network-manager restart, but the ...
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Can't update after NIC Teaming/Bonding Linux Server

So, I'm a noob when it comes to Networking on Ubuntu. I created a bond/NIC Teaming on my Ubuntu Desktop for the 2 NIC cards that I have on it, but I'm unable to resolve DNS names. This is making my ...
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DHCP address keeps getting generated with netplan and bonded interface

I have a bonded interface set up with netplan. Config is as follows: # This is the network config written by 'subiquity' network: bonds: bond0: addresses: [192.168.65.90/18] ...
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How does network setup internally work on Kubuntu / Systemd?

My networking seems to be totally screwed up. This is why I want to understand how network setup on (K)Ubuntu is supposed to work. Which components are involved and how they are meant to work together....
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Explaination of files under /etc/NetworkManager?

/etc/NetworkManager is an important directory where NetworkManager saves its configs. I want a complete list of what every file is for. All files under this directory on my laptop is $ tree . ├── conf....
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Wired connection detected but no internet access

I can confirm this question has been asked several times,unfortunately none of the solutions worked in my case. I can confirm the ethernet cable works fine. I just unplug it from nearby computer ...
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Problem with establishing connection to internet

I am unable to reach any web server from ubuntu VM ware on macOS host. Host: MacOS --> internet connection is fine Guest: Ubuntu --> internet connection not fine Ubuntu version lsb_release -a No ...
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After Update WIFI stopped connecting to home network (but works with others) [closed]

I have a Thinkpad T490s, just updated to Mint 20.2 (= Ubuntu 20.04). During the update process, the connection to my home network was lost, and I had to finish using a different network. Since then, I ...
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Can't connect to the internet and touchpad frozen after update to 20.04

Updated 20.04 this morning, and now the touchpad is frozen and I can't connect to the internet. nmcli d gives: DEVICE TYPE STATE CONNECTION virbr0 bridge disconnected -- lo ...
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Ubuntu 20.04 - NIC naming and match MAC with Netplan

I did my research before asking here; tried so many different things but I'm already lost about it. I'm running 20.04 (Modified version, GNS3 VM on ESXi) with 10 NICs. From time to time if I make a ...
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Connection drops after 2 second. How to reset every service and configuration that may be causing the issue (18.04)?

I am on Ubuntu 18.04. I have become unable to access internet (or better: I stop receiving data after 2 seconds from the initial connection) from all access points – both wired and wireless – of a ...
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Wifi disconnecting on ubuntu 20.04 and not reconnecting unless i restart

I run ubuntu off a persistent live usb and recently I've been having a problem where around 5-15 minutes after I boot into ubuntu my wifi disconnects and says that i have been disconnected from the ...
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Avoid NetworkManager automatically bring up connection

There is a similar question but it's quite old. I hope there's a better solution today. Ubuntu 20.04. I created a new NetworkManager connection inside the system-connections directory: [connection] id=...
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Wire Connection doesn't automatically connect. I can click it on and off without a problem

I recently set up a VPN connection. I then sudo nm-connection-editor And set the wired connection to automatically connect to VPN. Now, when I reboot, the wired connection doesn't automatically ...
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After booting up my laptop, and connecting to network server, my screen freezes, if I do not connect to server, no screen freeze!

I get locked screen, or a frozen screen moments after starting up my laptop, and connecting to the network server. If I do not connect to network, the screen does not freeze, the mouse works, ...
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Configuring loopback interface routes with NetworkManager

I have an Ubuntu 20.04 system. It has NetworkManager installed, with netplan's default renderer set NetworkManager. I would like to configure the system to enable multicast on the lo loopback ...
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How to configure a network in Ubuntu 20.04 when the network directory does not exists?

I am using this tutorial to configure the rootfs for ubuntu 20.04, I realize that this distro does not have the network directory but it is created after I use this command from the tutorial I ...
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Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01) support monitor mode and packet injection

Im trying to gather WiFi PMKID hashes, a wireless network interface that has monitor mode capabilities is required. My network controller is Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter ...
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Wifi drops and then doesn't recognize the password

When trying to transfer a large file to my Ubuntu 20.04 LTS box via rsync it will drop the wifi connection. To get it back, I have to login and do sudo service network-manager restart This usually ...
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Static ip address issue

I gave a static IP address using following command network: version : 2 renderer: networkd ethernets: enp0s3: dhcp4 : false addresses : 192.168.3.244/24 ...
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WiFi networks not showing in Ubuntu 20.04 LTS

I tried to fix my broken grub from a Manjaro live USB using grub-install following which I couldn't connect to wifi networks. I can however use Bluetooth tethering to access internet. Wifi works ...
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How to solve the problem where TP-Link's TP-WN823N would fail to connect to the network even with the driver installed?

My system is Ubuntu 20.04.3 LTS, and I'm having problems related to the wifi USB mentioned above. Before installing the driver, re-plugging the device would solve the problem until the next reboot. ...
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How to change Ubuntu network setting by editing/creating config file?

In Ubuntu 20.04 desktop, there is a GUI network tool in All Settings -> Network. If I set a static IP to some network adapter, there will be a config file generated in /etc/NetworkManager/system-...
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OpenVPN drops the connection to my machine from outside LAN

I'm facing this specific issue that I can't reproduce on Windows and Mac, it happens only on Linux. My network has the following setup. Fiber Router DHCPs 192.168.1.x to WiFi Router 192.168.0.x DHCP's ...
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Netplan Multiple NICS/VLANS

I'm running Ubuntu Server 20.04 and having issues configuring Netplan for 2 nics on 2 different subnets. I'm getting constant random disconnects. # This is the network config written by 'subiquity' ...
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Can't change default connection in Network Manager

I know that ubuntu-server uses networkd by default but some features of gnome doesn't play well with it so I'm trying to replace with Network Manager. The problem is that Network Manager's default ...
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Wired connection stopped working (Ubuntu 20.04)

OS: Ubuntu 20.04 Hardware: Core i5-2400 CPU, 6GB DDR3 RAM I was using the same wired connection for the past year without any issues. The LAN LED on the router lights up during boot for a few seconds. ...
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Ubuntu Freezing due to wifi driver issues

I have been using Ubuntu 20.04 for couple of months and suddenly my laptop started freezing randomly to the point it is a problem to normal usage. I have a dual boot with windows as the other OS and ...
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21.10 - AX200 wifi randomly drops, switching to CONNECTED_SITE

I recently upgraded from 21.04 to 21.10 and my wifi (which used to work perfectly) now randomly drops until I cycle the networking off / on again from the menubar icon. I was recently able to observe ...
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Moved to XFCE and it isn't connecting to ethernet correctly

I moved from default GNOME to XFCE because I think it's more minimalistic and even more powerfull. The problem is that for some reason it does not connect to network normally. Everytime when I first ...
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Connected on wireless but no internet access in Ubuntu 20.04

I have just started picking up Ubuntu and have come across an issue I cannot seem to resolve. I have been using linux for a few days and it has been working fine. All of a sudden, today I was not able ...
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Why ppp0 is reported as both connected and disconnected?

I have an Ubuntu 21.10 and I get the below confusing network status related to ppp0; RDS (aka StamAcasa.rdsne) is the name of my network connection providing access to Internet. Why ppp0 is reported ...
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Connect Internet through two different LAN Interfaces

I am trying to connect an IoT device to internet. It is running on Ubuntu. It has two Ethernet interfaces. One is connected to a LTE modem + antenna (fast and cheap connection), and the other is ...
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How do I configure multiple interfaces in Network Manager?

Ubuntu Desktop 20.04 I seem to be misunderstanding something. My workstation is plugged into wired Ethernet. When I opened NM, one interface said it was connected, so I configured that with a static ...
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Gnome Control Center takes forever to start and then I can't edit network settings (Ubuntu 18.04)

I have problem with gnome-control-center, it takes forever to start (30 seconds), and then I can't edit the network settings. There is some clue in the verbose output: $ gnome-control-center -v (...
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Tethering to iPhone greyed out & "disconnected"

Hope you can help a noob with this, or point me to a prev. answered question. I'm trying to USB tether to an iPhone SE 2016 (iOS 14.1) to my Thinkpad X230, running Ubuntu Studio 20.04.3 LTS (Xfce), 5....
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Where has the network-manager service in 21.10 gone?

Before upgrading I could use sudo service network-manager restart when having connection issues. After upgrading to 21.10 the network-manager is still installed, but not as a service anymore. ...
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WiFi randomly? disconnects until reboot on Ubuntu 20.04

Recently I have come across a bug where my WiFi disconnects, and I am unable to find a network until I reboot my computer. I run Lubuntu only and didn't start having this issue for several months of ...
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Temporary failure in name resolution Ubuntu 20.04.3 LTS

I have a brand new machine and get this error after every reboot. $ ping google.com ping: google.com: Temporary failure in name resolution $ cat /etc/resolv.conf nameserver 8.8.8.8 nameserver 8.8.4.4 ...
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systemd-resolved not resolving any domains

My NetworkManager connects to the internet but I do not have any internet access due to a bad DNS configuration. I do not have much experience with DNS settings, but it appears the issue is with ...
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bpfilter kernel log

I am using ubuntu 20.04.3 with a kernel 5.14.11-051411-generic. When I examine the kernel log, I find numerous and seemingly useless messages such as: tail -f /var/log/kern.log Oct 19 18:04:03 hugo-MS-...
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-network UNCLAIMED description: Network controller product: RTL8723DE 802.11b/g/n PCIe Adapter

After upgrading to Ubuntu 21.10, my wifi not showing up. Output of following command sudo lshw -C network *-network description: Ethernet interface product: RTL8111/...
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how to : systemd-resolve writes a bad resolv.conf doesn't read settings

This problem is a blocking issue, it does prevent me from using my laptop and accessing internet. Using Ubuntu 20.04.3 latest update Oct 19th After the one but last update oct 10th suddenly I had a ...
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Xubuntu disconnects local private network after brief timeout

I have Xubuntu 20.04 running a robot over a private network (absolutely no wider internet connectivity). When I enable the network interface ("wired network 1") it works for a while, the ...
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No wifi in Lubuntu. wlp5s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000

Quick intro: I'm new at Linux, but i love to learn and research From one day to another wifi just stopped working It works fine in other devices I've been trying for 2 days and still nothing Info: ...
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NetworkManager not handling connections

I am facing a problem where although I am connected to the network I cannot find any connections on my NM applet. I added a VPN configuration also there and whenever I try to log into it i get a ...
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Incorrect behaviour? Setting wireless connection IPv6 method to "Disable" doesn't disable IPv6

Ubuntu 20.04.3 LTS: When I set "IPv6 Method" in the IPv6 settings tab of a wireless network to "Disable", I'm still seeing that the interface is getting an IPv6 address. Setting ...
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UBUNTU 20.04 - Wired internet connection issue - UNCLAIMED NETWORK!

I can connect internet via wifi. However, I have a problem with wired connection. My ubuntu can not see any wired connection. When I tried "lshw -C network", it print out the screen below *...

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