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.
4,260
questions
1
vote
0
answers
61
views
No internet connection and missing ethernet option after installing driver for second monitor (Ubuntu 22.04.4 LTS)
I'm encountering an issue with my internet connection and ethernet settings after installing a driver for a second monitor on my (Ubuntu 22.04.4 LTS) system
I've tried the following troubleshooting ...
- 11
0
votes
0
answers
176
views
Ethernet is not working on Ubuntu 22.04
I'm a new Ubuntu user and I don't know what happened. Here are the current settings.
Results of sudo lshw -C network:
Results of nmcli-device:
Results of ifconfig:
Results of sudo nano /etc/...
- 11
0
votes
0
answers
48
views
Can I configure my netplan configuration so that all UDP outgoing broadcast traffic goes thru a specific Ethernet interface?
I've got Ubuntu Desktop 22.04 on a computer with 2 Ethernet interfaces. I've been reading netplan documentation for the past 2 hours and I'm running out of ideas (or understanding).
eth1 connects to ...
- 129
0
votes
0
answers
26
views
Network Manager keeps asking for "Legitimation for WIFI"
I have an elderly person whose desktop is connected to the LAN via WIFI card.
The WIFI is always the same, "Allow all users to connect" is already checked, the main user gets automatically ...
- 9
1
vote
0
answers
49
views
Wi-Fi connectivity issues on Ubuntu Server
I'm trying to setup to run my old laptop as a home server using Ubuntu Server 22.04.4.
The problem is after configuration, my laptop can not detect any wifi using
nmcli device wifi list
I have tried ...
- 11
-1
votes
1
answer
91
views
Ubuntu Wifi keeps disconnecting intermittently and don't connect afterwards
I'm using ubuntu 22.04. My wifi keeps disconnecting randomly in every two hours. And after that it don't reconnect imediately. I've to do all sorts of things to reconnect like restart my computer ...
0
votes
0
answers
31
views
Virtual WDS AP Can't Connect to Home WiFi Network
I'm running Ubuntu Server 23.10 on a Raspberry Pi 4B. I have WDS/4addr enabled on my USB-WiFi Dongle (that has AP capabilities), and have created a virtual network named 'wds0' that would connect to ...
- 123
0
votes
0
answers
122
views
Create an offline (no-internet) network using netplan
I'm trying to create a simple, no-internet (completely offline) network consisting of an Ubuntu server (22.04 LTS). The server will both create a wifi access point and connect over wired ethernet to ...
- 101
0
votes
0
answers
68
views
Ethernet problems on Ubuntu 22.04 LTS
Before anything, I'm using a somewhat old Asus laptop model (Q550LF). With that said here is the more detailed specs of the problem:
0
votes
1
answer
82
views
Prioritize routes in NetworkManager when using custom IP with DHCP fallback
I'm using network manager to set a custom IP address, but also keeping DHCP activated in case I connect my headless device to another network, I automatically sets the default gateway and everything. ...
- 101
0
votes
0
answers
255
views
Nmcli and nmtui can't read password for wifi network
Ubuntu 23.10 here. When using Network Manager in KDE, I can connect to the wifi network via the Network Manager applet. Connections are saved with passwords so I don't need to enter a password for ...
- 1,225
0
votes
0
answers
54
views
Connecting to two different networks simultaneously using two network adapters to access Internet
Description
I have two wifi adapters, each one is connected two a different network, while each network is connected to the Internet.
The two networks have the same network mask and my computer has ...
- 789
1
vote
0
answers
56
views
Network setup for a mobile robot base
I am working on a mobile robot base that is supposed to be controlled from a stationary control station. The robot itself has multiple computers onboard, which are on an internal Ethernet network. The ...
- 31
0
votes
0
answers
30
views
Unable to get l2tp 1.3.16 to work on Ubuntu 22.04
System details:
Laptop: TIMI Mi NoteBook Ultra
OS: Ubuntu 22.04.4 LTS
Processor: 11th Gen Intel® Core™ i5-11320H @ 3.20GHz × 8
xl2tpd version: xl2tpd-1.3.16
I have been trying to set up l2tp on my ...
0
votes
0
answers
58
views
turning wireless interface off
I am creating a hardening tool where i need to turn off all the wireless interfaces,
is the command nmcli radio all off enough for that purpose, or should i be doing something extra, making some ...
- 1
0
votes
1
answer
932
views
NetworkManager is not running after upgrading to Noble [closed]
I admit I knew this to be a long shot, but had to try it - I upgraded my 23.10 to 24.04.
After booting up, my network connectivity is gone and the Settings screen says:
What I would usually do in ...
- 123
0
votes
1
answer
86
views
Sudden problem with WiFi internet access with one specific Ubuntu 22.04 device with one specific router
I have an Ubuntu 22.04.4 LTS (with Intel Wi-Fi 6 AX201) that suddenly it just can't access the internet with my home WiFi. It was completely unexpected because it was working fine up until now, and ...
2
votes
1
answer
696
views
ip-config-unavailable DHCP error from NetworkManager
Overview and Environment
I recently set up a new VirtualBox VM and ran into some strange network behavior. The machine is running Ubuntu 22.04 and after installing the virtualbox guest additions, my I ...
- 141
0
votes
0
answers
27
views
How to reactivate the network manager when the PC does not have access to the internet?
The day before yesterday I installed the proprietary NVIDIA 535 driver and yesterday when I turned on the laptop, the place to log in did not appear. I managed to use GRUB to access the terminal and ...
- 1
0
votes
0
answers
83
views
Script ideas for configuring VPN connection
After some bad crashes of my system, I decided to take a more organized approach and develop a bash script that will handle most of the things I tend to configure manually after a fresh installation (...
- 353
0
votes
0
answers
56
views
Wifi disconnecting after some time in Ubuntu 22.04.4 LTS, REL8822 CE
I have a problem with wifi connection, the wifi is disconnecting after some time. The wifi is connecting if I restart the pc and after some time disconnecting again.
I ran the command:
sudo dmsg
I ...
0
votes
0
answers
88
views
Network Manager keeps crashing
When I manually try to turn off my WiFi or switch network from the system tray, NetworkManager crashes and I get this NetworkManager needs to be running
I followed a solution from here Ask Ubuntu | ...
0
votes
2
answers
175
views
Two NICs on same network - one for internet, one for LAN
I have two NICs in my home server - both are connected to same network. One is 2.5Gbps (which I'd like to use for LAN - eth0), other is 1Gbps (which I'd like to use for internet-only - enp0s25).
What ...
0
votes
0
answers
32
views
OpenVPN (Focal/Jammy) is there any way to import a URL rather than use an ovpn file?
Not being given an .ovpn file, I am instructed to import from a URL. Android and Windows and Mac have this choice. I don't mind the command line, but has anyone managed to do this?
- 355
0
votes
0
answers
132
views
bus manager fails because service is already taken, why
I am running ubuntu 22.04. after the boot I look at the journalctl using this command:`
journalctl -xb | grep "error"`
I have 5 lines returned like this:
Mar 10 15:51:43 ubuntu ...
- 31
0
votes
1
answer
233
views
Running nmcli device shows all unmanaged
Screenshot of issue
Newbie, recently installed Ubuntu Server OS on Raspberry Pi 4. It shows networks are unmanaged, might also be the reason why ROS on dev machine can't communicate with ROS on ...
- 3
0
votes
0
answers
47
views
Wifi Connection does not work anymore over the night when Laptop was locked and has a low power
here is the journal of the NetworkManager:
Mar 04 12:59:02 david-ThinkPad-E15-Gen-4 NetworkManager[699]: <info> [1709553542.1224] device (wlp2s0): Activation: successful, device activated.
Mar ...
- 1
0
votes
1
answer
814
views
Network Manager not working, help
im setting a server with Ubuntu 22.04 and i have been instaling Ubuntu several times. At first, Network Manager worked great and displayed all the networks, but now nmtui doesnt show anything, and ...
- 11
0
votes
0
answers
27
views
Internet adapter don't work properly with different subnet masks in a multi adapter PC
I'm having some troubles trying to config a triple internet adapter configuration in my 'home made NAS server', aka a old computer like a server, using Ubuntu desktop 22.04.4 with a SAMBA share for my ...
1
vote
0
answers
134
views
NETPLAN "DESTINATION HOST UNREACHABLE" Ubuntu 20.04.6 desktop
I'm quite new to Ubuntu and I'm trying to configure my netplan file.
when I set the configuration in my /etc/netplan/01.-network-manager.yaml there seems to be an issue after i have apply the setting (...
0
votes
0
answers
145
views
Ubuntu 22.04 wifi connection is lost every x minutes
A week or two ago my wifi started losing the connection every 10-20 minutes. As far as I am aware I did not do any updates or anything prior to this. I have tried all sorts of solutions found online, ...
- 101
0
votes
0
answers
82
views
Issue with dual-NIC clients and netplan swapping ethernet interfaces
Background: 1500+ stations running Ubuntu Server + ubuntu-desktop-minimal, most are still on 20.04, new stations are all deployed with 22.04 (with a ubuntu-desktop-minimal --no-install-recommends flag ...
- 11
0
votes
0
answers
34
views
No 5Ghz detected and wifi connection "expires" but keeping a terminal pinging an address keeps the connection alive
My problem is two-fold, and I think they might be related:
On the "select network" tab, I only see 2.4Ghz networks, however my router has the typical 2.4 and 5ghz variant. I much prefer the ...
- 1
-1
votes
1
answer
385
views
Open/LibreSwan Networkmanager Plugin
When trying to Create an Openswan connection in networkmanager, it cannot connect due to a missing plugin.
an apt search shows that openswan is using libreswan but for neither name I can find a ...
- 119
1
vote
0
answers
161
views
Only IPv6 Link Local Address after Ubuntu update
Since recently running a software update on my Kubuntu laptop, I only have a Link Local address assigned for IPv6. The connection GUI IPv6 configuration looks normal and identical to my working ...
- 11
0
votes
0
answers
72
views
Ubuntu 22.04 unable to use JetBlue inflight wifi
I have Ubuntu 22.04.3 running on an Asus Zenbook, exact model UX390UAK. My wifi at home and in coffee shops works fine but on every JetBlue flight I take I'm unable to use their inflight wifi (called ...
- 101
0
votes
0
answers
73
views
Simple eth0 config not working
I am a network guy but I am trying to set up a syslog and snmp server in gns3 using an Ubuntu appliance:
Linux Toolbox-1 5.15.0-91-generic #101~20.04.1-Ubuntu SMP Thu Nov 16 14:22:28 UTC 2023 x86_64 ...
0
votes
1
answer
110
views
DNS servers and public hotspots - 25% of them fail and solution is hard to find
At about 25% of random wifi hotspots I have no trouble connecting with my phone, but my linux does not connect. I tried everything in this post.
nslookup google.com does not work
➜ ~ nslookup google....
- 103
0
votes
0
answers
92
views
Ubuntu server cant ping outside network &| DNS (Temporary failure in name resolution)
My network on the server is not working, help much appreciated
default via 192.168.50.1 dev eno1 proto static
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.50.0/...
- 1
0
votes
0
answers
25
views
gateway is not pingable /etc/networ/interfaces
I have a raspberry pi and modem connected to the network. I add the following lines to /etc/network/interfaces
source-directory /etc/network/interfaces.d/*
auto eth0
iface eth0 inet static
...
- 1
0
votes
0
answers
75
views
Impossible to make IP static - SOLVED
I may be had an upgrade problem from Ubuntu 20.04 to 22.04 that I can't solve.
My IP was before static at 192.168.0.100 on the "ens1" interface, but the interface have been set to "...
- 1
0
votes
1
answer
271
views
What is wlp2s0 and why is its state listed as disconnected?
What is wlp2s0 and why is its state listed as disconnected?
user@userserver:/home/user# nmcli device status
DEVICE TYPE STATE CONNECTION
wlp2s0 wifi ...
- 1
0
votes
0
answers
153
views
Wired Connection suddenly not working in Ubuntu 22.04
This computer is used to serve SSH remote access.
The ethernet cable and network are all working fine.
However, the computer has suddenly lost connection and now shows '?' sign for the wired ...
- 1
0
votes
0
answers
78
views
Internet showing in visible networks but not connecting
I have Ubuntu (20.04) and I am typing this from another device.(Proving that internet is working on all my devices except on ubuntu). I have no coding experience per say but I have used the terminal ...
- 1
1
vote
1
answer
718
views
WPA3-enterprise on Ubuntu
I need to connect to a WiFi network that has WPA3-Enterprise as its security method for Wifi with username/password authentication. In windows, I can connect to this network just fine, by only having ...
- 173
0
votes
0
answers
201
views
wifi issues in ubuntu 23.10
I installed ubuntu 23.10. My wifi suddenly disconnects then again reconnects and this cycle goes on. It shows activation of connection failed
$ sudo lshw -C network
*-network
...
- 1
0
votes
0
answers
22
views
Wired Network Issue: Looping in wire unplugged to trying to connect at 10mbps to wire unplugged
A fresh install of a dual boot Ubuntu 22.4 cannot connect to wired network.
The motherboard is a Gigabyte H510M H and here is what the syslog says
Feb 9 11:29:25 michel-H510M-H NetworkManager[631]: &...
- 594
-1
votes
1
answer
168
views
Ubuntu 23.10 - Nework interface settings visually revert after closing configuration dialog and internally revert after rebooting
I'm trying to permanently set a static IPv4 address on a specific network interface in Ubuntu 23.10, via the "Network" menu in the settings app. However, when I leave the network interface's ...
- 107
-1
votes
1
answer
504
views
Trying to force hotspot to use 5GHz band, but uses 2.4GHZ no matter what
I am creating an experiment where I am using a bluetooth analyzer. I am creating a wi-fi hotspot that must use the 5GHz band so that it doesn't interfere with bluetooth.
I have edited the Hotspot....
0
votes
0
answers
40
views
configured ubuntu server wifi via installation disk, unable to use Network Manager [duplicate]
I recently installed a Ubuntu Server from live ISO. During installation I configured a Wi-Fi network. However now, post-installation I am unable to use network manager (nmcli/nmtui) at all as it does ...
- 11