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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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How do I Two WAN Interface and LoadBalance

My Ubuntu server have two public wan interface.I need being able to load balance two wan interfaces.How I do ? Ubuntu Release: 22.04
Sinan Eng's user avatar
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Ubuntu can't connect to Wifi

can u please help me to config my ubuntu... I can't connect just to one wifi on my job. My phone and windowns computer are connecting correctly. But Ubuntu 23.10 and 22.04 can't connect and asking to ...
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Problem with network and how to fix it?

When I try to connect to the network it shows the VPN page settings and doesn't connect to the network. And it doesn't show the Wi-Fi icon in the right corner. When I connect LAN cable to my laptop, ...
Hoàng Nguyễn's user avatar
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Wifi Stopped scanning for Networks

as you can see here my wifi card can't scan for networks, and it was working only 5 minutes ago I tried restarting network manager and tried connecting to my wifi network manually but that didnt do ...
Vegeto.T's user avatar
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Wifi option disappears after connecting

Since this week, I have been having issues with the wifi on my laptop. It appears that whenever I connect to the wifi at work (I have not experienced the same issue at home or at a friend's place the ...
ojima's user avatar
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Observing network change event in linux application

I have an application where I wanted to get notified if there is any network change that has occured. I have found a bunch of solution like using NetworkManager or systemd-network service (which I do ...
Vipul Gupta's user avatar
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Mediatek MT7921K WIFI fails on 23.10

I tried two different Mediatek MT7921 cards. According to Linux-hardware it is apparently working flawlessly with "recent kernels" (of November 2022) https://linux-hardware.org/?id=pci:14c3-...
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Network connection error - unreachable with one user

I have a desktop with Ubuntu 20.04 and it has the following problem. When I try to connect to the wired network it works with one user and with another, despite connecting, if I try to access the ...
Federico Ventura's user avatar
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Can't open Wired Settings

Fresh install of Ubuntu 22 LTS with NVIDIA card. When I try to open Wired Settings it won't open and log goes wild with NVIDIA-DRM errors. Nov 4 20:11:32 ubuntu22 kernel: [539792.105809] [drm:...
SamTzu's user avatar
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2 answers
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Netplan: accept terms and conditions

I have an ubuntu-server installed on a raspberry pi 4. The ubuntu server is using netplan for network configuration. I wan to connect to an open wifi network called "WiFi4EU". But when I ...
Jarne's user avatar
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Wlp2s0 state DOWN, mode Dormant

Occasionally I don't get access to the internet for no apparent reason. I get the error message activation of the network failed. Looking deeper into the problem I noticed that my wlp2s0 state is DOWN ...
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My Ubuntu 22.04 keeps giving me SIGSEV error or network issues

Kernel: 5.19.17-051917-generic No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.3 LTS Release: 22.04 Codename: jammy Please help me as I waste too much time and ...
Sarthak Agarwal's user avatar
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Ubuntu Server - Internet not working on a specific network connection

I run two home servers on which I've installed the Ubuntu 22.04 server. I also got a new network provider and a router, and one of the servers refused to just connect to the internet through that. ...
Ankit Singhaniya's user avatar
1 vote
1 answer
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WiFi disappears randomly 22.04

I've been using Ubuntu 22.04.03 for a while and once in a while WiFi will disappear from the icons above and the settings page. Most of the sites I've checked regarding this issue resolve the problem ...
Mookey's user avatar
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Can't connect to Wi-Fi after Network Manager error, 23.10

I had ran into a Network Manager error where I was advised to restart my PC. After restarting, sadly, nothing is fixed. Every time I try connecting the Wi-Fi icon suddenly disappears and then comes ...
yanonono's user avatar
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Ubuntu OpenVPN network manager routes all traffic through VPN when it should not

I've a running server of openVPN. This server is configured to only route traffic to internal network when needed. In server.conf: ... push "route 192.168.0.0 255.255.255.0" ;push "...
Gonzalo Cao's user avatar
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Network manager connection to openvpn server configured with Ubuntu 23.10 tutorial

I've completed the setup of a server using the Ubuntu tutorial here: https://ubuntu.com/server/docs/service-openvpn After configuring the client.conf file as described, with the ca.crt, myclient1.crt, ...
krumpelstiltskin's user avatar
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Ethernet cable is plugged but shows unavailable

Here are my logs: nmcli device status ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:...
Sujal Gupta's user avatar
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Controlling power management with systemd-networkd

I was having Wi-Fi issues on Ubuntu 22.04 terminal edition. I tried to disable power saver by setting the networkmanager config file. It never changed the state of wifi module and I finally figured ...
FourierFlux's user avatar
2 votes
0 answers
185 views

List of available wifi networks is empty

I struggle to get my wifi up and running on Ubuntu 22.04.3 LTS with kernel 6.2.0-35-generic. While the wifi pretends to be up and running: nmcli d DEVICE TYPE STATE CONNECTION ...
Genius's user avatar
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Can't Use DNS On Network Manager

I followed a guide by MakeUseOn setting a static IP on Ubuntu Server with Network Manager. After some time, my DNS has stopped working. I have tried using sudo nmcli con mod static ipv4.dns "8.8....
Kaympe20's user avatar
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How to setup the GNOME built-in OpenVPN configuration in Ubuntu 22.04

My system is Ubuntu 22.04, and OpenVPN has been included in GNOME. I don't know how to setup the OpenVPN configuration in Network Manager GUI. I need your help.
Wyman so's user avatar
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NetworkManager is not changing MTU setting

I'm trying to change my MTU size on my ethernet interface. I'm just using Ubuntu 22 Desktop, i've set my MTU value to 10000 through the Gnome network settings: I've then restarted NetworkManager sudo ...
Baa's user avatar
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WiFi Disconnects when transferring large files

I run Ubuntu Desktop as a server to serve media (Emby), DNS (Pihole), and files (Samba). I use SSH to manage the server. Whenever I try to transfer large files to the server regardless of destination ...
Vadim's user avatar
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Making Ubuntu NIC have same static IP address

I have Ubuntu 22.04 in my laptop. The IP address today changed from 192.168.1.9 to 192.168.1.10. I tried to specify the old IP address in netplan and applied it and restarted computer still it is ...
jeets's user avatar
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Disabling networkmanager dispatcher for only the ethernet

I am trying to disable NetworkManager dispatcher scripts using the terminal and enable back dispatcher scripts when i need to. I am fairly new to this kind of stuff and i don't know if its possible or ...
neorinm's user avatar
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2 votes
1 answer
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Ubuntu 23.10 wifi connects and disconnects every few seconds with 0bda:c811 Realtek adapter

I am attempting to dual boot Ubuntu 23.10 with Windows 10. When I boot into Ubuntu the Wifi connects and then disconnects a few seconds later. It does this constantly. At first, after I had installed ...
maverickUbuntu's user avatar
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1 answer
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Ethernet connection "unclaimed"

I have my ethernet cable plugged into my PC, yet it doesn't show up in the GUI list of network devices. I have verified the cable works when plugged into another device. Here's the output of sudo lshw ...
AJ Wu's user avatar
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My Ubuntu 22.04 cannot see some WiFi networks

I have tried this in 2 different houses: I boot my Ubuntu 22.04 and turn on WiFi. Some networks appear (e.g. from neighbors, or the hotspot from my phone), but not the home network (which is visible ...
Zap's user avatar
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Ethernet device disappears

A short time after login, my ethernet port disappears from the output of ip addr and other network commands. Here is what journalctl has to say about it: okt 18 14:34:12 taket NetworkManager[1602]: &...
Gauthier's user avatar
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7 votes
4 answers
11k views

Wi-Fi suddenly not working on 23.10

I've installed the 23.10 iso on my work machine before it got taken down, and everything was working flawlessly. However, after booting up this morning I can't connect to wifi anymore. Tried a few ...
andre_ange_marcel's user avatar
1 vote
0 answers
173 views

No available connection after switching to KDE from GNOME

I'm using Ubuntu 22.04.3 LTS. I decided to switch from GNOME to KDE Plasma as windows manager. The issue is that i cannot see any connection in connection manager (try icon and under system setting ...
Razlo3p's user avatar
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0 answers
147 views

No IPv6 link-local address assigned to ethernet adapter, but is working on Wi-Fi

I have a fresh Ubuntu 20.04 install on a system with 2 interfaces - Ethernet (enp2s0) and Wi-Fi (wlp3s0). On the enp2s0 interface I set a static IPv4 address and wlp3s0 is using DHCP for Internet ...
rustyx's user avatar
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1 answer
159 views

Apparmor prevents access to certificate bundle for IKEv2 VPN

I am trying to get a Strongswan / IKEV2 VPN set up on Ubuntu 23.04. I have the Network Manager plugin compiled and working. When I attempt the connection, I get the below error in syslog, that it is ...
Thystra's user avatar
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2 votes
1 answer
745 views

Wifi constantly disconnecting

I am using Kubuntu 23.04 and have been having trying to fix this issue for the past couple weeks. As you can imagine, I've read tons of threads on here and other places but no luck so far. My wifi ...
Landy4.6's user avatar
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0 answers
92 views

DNS with VPN problem

I've been facing issues accessing company websites with the VPN and company DNS configurations set up. Access can be gained by manually adding entries to the /etc/hosts file but im looking for better ...
Daniel's user avatar
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0 votes
0 answers
297 views

Does network manager really support tls-crypt-v2?

I've set up an OpenVPN server on my OpenWRT router. It offers tls-crypt-v2 so I've used that. To make sure that my Ubuntu 20.04LTS cooperates with it, I've updated whatever seemed handy according the ...
hurjup's user avatar
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0 votes
1 answer
143 views

PC cannot connect to internet using new cable modem

I got a new 2 port cable modem to replace the single port one that died recently. The Windows laptop connects to the internet fine, but the desktop PC running Xubuntu 20.04.6 LTS cannot get a network ...
Arthur Anondale's user avatar
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0 answers
52 views

VPN configuration box is grayed out, Xubuntu Desktop

I am facing a issue where when I try to add a VPN connection, the VPN configuration Box is grayed out and unclickable (attach in image). This is a fresh install of Ubuntu server and overthat I had ...
Muhammad Sarhan Aashir's user avatar
2 votes
1 answer
2k views

Mediatek MT7921 WLAN stuck on connecting, or no/intermittent pages display

MEDIATEK MT7921 WLAN will not connect, or connects but no pages display, or they display after several minutes. I have not encountered an issue using this at home or anywhere when tethered to my Pixel ...
saltyeggs's user avatar
0 votes
0 answers
39 views

My network devices are unmanaged, but I can still connect to wifi manually using `iw` [duplicate]

So when I installed Ubuntu server (with i3 afterwards), I setup my wifi and everything went well. After the install, my laptop would automatically connect to my wifi. My issue is, I cannot connect to ...
Al-Baraa El-Hag's user avatar
1 vote
1 answer
1k views

IPsec/IKEv2 on Ubuntu 23.04 with strongswan

I have installed the strongswan package on Ubuntu 23.04. in order to connect to a VPN via IPsec/IKEv2. When opening the VPN settings in gnome, I receive the error message "unable to load VPN ...
Gerry's user avatar
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2 votes
1 answer
2k views

How to effectively to set a global static ipv6 by `addr-gen-mode=eui64`?

I see there are a lot of questions about static ipv6, and privacy (like here, here, here, here and here), and I believe I have tried most of the available solutions (or at least those I was able to ...
hamagust's user avatar
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0 answers
118 views

gnome-system-tools: command not found

I've just installed Lubuntu 22.04.3 LTS (Jammy Jellyfish). I can go online only via a cable. I looked for wifi-radar but it doesn't seem to exist for Lubuntu. I found wifi-qr but it doesn't function : ...
Alain Reve's user avatar
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0 answers
126 views

Network interface goes down randomly but comes back up after reboot

After installing ubuntu on my new HP Probook, I’ve had problems staying connected to wifi for more than a few minutes. At first it all works fine, but then I get a notification saying Wireless ...
Arpanhj's user avatar
0 votes
1 answer
1k views

Ubuntu 22.04 as a router. 2 LAN (LAN with Internet + LAN with AP). AP network do not see IP addresses from first network

it's been a while when I setup similar config... that's why I'm a bit confused. So I have box with Ubuntu 22.04 with two LAN cards. My network looks like that. ROUTER [192.168.88.1/24]: UBUNTU BOX [...
syncerror's user avatar
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0 answers
373 views

"Activation of network connection failed"

I receive an Activation of network connection failed error when trying to connect to my home wifi network. I am running Ubuntu 20.04 on a Lenovo laptop. Other devices are able to connect to my home ...
Justin Kuric's user avatar
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0 answers
159 views

network manager not show bond0 lacp connection

System is running Ubuntu desktop 23.04 I am unable to update Application Software because the application does not see a network connection. I have created a LACP 802.3ad dual nic connection using the ...
SkiBum's user avatar
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1 vote
1 answer
392 views

Network Connection Drops and Works Only After a Reboot [Ubuntu 22.04.3 LTS]

Problem The ethernet connection drops a while (unknown/random), and only rebooting the machine resolves it, until it breaks again after some time. I have tried to monitor the network graph in the ...
varungupta's user avatar
0 votes
0 answers
88 views

Ubuntu hosting VPN for personal VPN network

This is probably a simple solution and I am missing something but I have a home network that does not have a static IP and I have a domain controller and a samba share on that DC, I want to be able to ...
Ryan Vogel's user avatar

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