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
0
votes
1
answer
19
views
How to match the --out-interface to the same --in-interface in iptables
The system have multiple interfaces: eth0, eth1, eth2, ... br0, br1, br2, ...etc.
The following rule will allow packets from "br0" to "br0":
iptables -A FORWARD -i br0 -o br0 -j ...
- 393
0
votes
1
answer
22
views
Unabe to do KVM networking over WiFi Interface
Running Ubuntu Server 24.04. I am trying to connect a Debian VM (KVM) to be accessible through my Home Network. Host to VM communication is not necessary.
On the host Machin there is a Lan port that I ...
- 117
0
votes
0
answers
26
views
Why Ubuntu 22.04 Network Manager sends messages to blackcat.canonical.com in two IP addresses?
Here are the netstat -tnp output captures from my Ubuntu 22.04 workstation. Why are there outbound NetworkManager connections established from time to time? What are they doing?
The IP addresses ...
- 13
0
votes
1
answer
47
views
QEUM KVM unable to start default network
I am trying to spin up a VM using KVM on Ubuntu. I am faced with an error when trying to set up Network settings no matter the choice:
Unable to complete install: 'Requested operation is not valid: ...
- 117
-1
votes
0
answers
26
views
Setup Static IP for USB Ethernet Adapter Ubuntu Server
im using a USB Ethernet Adapter for my machine and I would like to setup static IP for that. Ive been following tutorials from other sources but it only applies to cable ethernet.
Im using Ubuntu ...
0
votes
0
answers
23
views
wifi issue on ubuntu 22.04
I am using Ubuntu 22.04 and my wifi gets disconnected after some time not following any regular time interval. But the problem is after getting disconnected every wifi available disappears from the ...
2
votes
0
answers
119
views
Slowdowns since Update to 24.04 not only at boot time
Since the update to version 24.04 coming from 23.10, I have noticed waiting times in some situations that did not exist in this form before. The most noticeable and annoying is at system startup. The ...
- 21
1
vote
0
answers
103
views
Force network manager to always connect to highest autoconnect-priority network even when already connected
I am using Network Manager (nmcli) to configure two connections to two different Wi-Fi networks wifi1 and wifi2.
I have set up a higher connection.autoconnect-priority for wifi2 (let's say 2) than for ...
- 61
0
votes
0
answers
37
views
System network connection
I tried installing a vpn (hide.me) then uninstalled it since I was not able to use it. After uninstalling the vpn, my Ubuntu was no longer connecting to the internet. It shows that the internet is ...
0
votes
0
answers
16
views
How to create NetworkManager profile for serial interface over SLIP protocol?
I've following network connection:
router <-> device Ethernet to serial (SLIP) <-> PC with serial input.
I need to reach network on PC over this chain.
I've attached slip interface over ...
- 1
2
votes
1
answer
342
views
Wifi deteriorates over time; cronjob to restart network manager
I have an issue with my Ubuntu machine and WIFI, which apparently is difficult to resolve. Turning off and on the wifi fixes it (temporarily). When trying to connect from outside and the speed is very ...
- 705
0
votes
2
answers
49
views
Kubuntu 22.04 wlp2s0 wifi connected, but doesn't exist in "connections" app
Running kubuntu 22.04 on older Dell Inspiron P75F.
Wifi connects as wlp2s0 and internet is accessible. However, the device is missing from the "connections" app and the "network" ...
- 21
0
votes
0
answers
37
views
Ubuntu does not see any wifi networks
Hello I am new to Linux so sorry if i don´t give enough information.
As stated above Ubuntu does not see any WiFi networks.
Current setup
Operating system: Ubuntu 24.04 LTS
Processor: Intel Core i7-...
- 9
0
votes
0
answers
77
views
WireGuard - Server Through Gnome Network Manager?
Can a WireGuard server be setup through Gnome network-manager? with a wireguard.conf file - no terminal or other program needed.
I need 3 clients to be able to connect to the server.
Internet traffic ...
- 83
0
votes
1
answer
31
views
Ubuntu WiFi hotspot MIA
I have a fresh Ubuntu 24.04.4 with a USB Wifi dongle from BrosTrend (AC1L), the most Linux friendly I can find. This is a minimal desktop version, but I initially turned off X/GNOME as it was mainly ...
- 125
0
votes
0
answers
58
views
Ubuntu 24.04 freezes when compiling code with LLVM-14
I have been running into an issue over the past 2 weeks where compiling my work codebase (bazel build system) causes Ubuntu to freeze completely. The only way out is to force-restart. I have tried ...
- 113
1
vote
1
answer
84
views
How to modify sbin.dhclient apparmor profile which is preventing automatic DHCP connection to network after upgrade to Ubuntu 24.04
After upgrading to Ubuntu 24.04 I can't make any network connections, wired or wireless with automatic DHCP enabled.
I have traced the problem to apparmor which is giving the following error messages ...
- 45
0
votes
1
answer
312
views
WiFi not connecting after upgrade to Ubuntu 24.04. Problem with apparmor?
After upgrading to Ubuntu 24.04 I can't make any network connections, wired or wireless with automatic DHCP enabled. If I set IP Address, Netmask and Gateway manually everything works. To get the ...
- 45
0
votes
0
answers
38
views
How to create a network bridge between wlan0 and et1 to a second eth0 device?
I have a network topology as described in the linked image. Network Setup
I have a WiFi router on a private 10.12.12.1 network. An Ubuntu 20.04 box, on a Nvidia Jetson, is connected to the WiFi ...
- 1
0
votes
0
answers
33
views
Failed: failed to start .snap.network-manager.networkmanager.service
I see this on my black display when Ubuntu 24.04LTS crashes to the black screen and requires logging back in or rebooting...what does it mean and how do I fix it... or does it need fixing?
- 123
0
votes
0
answers
36
views
X session is not starting with the network disabled
I have an Ubuntu 22.04.4 installation with a Xanmod 15 khz patched kernel and bash startup and a tty1 override for a custom script launch.
This script launches an X session with openbox plus a ...
- 1
0
votes
0
answers
127
views
wifi(wlan) not working on ubuntu 24.04?
i think the error is in the image
I recently updated to Unbuntu 24.04 LTS version. During that day everything worked fine but today I encountered a problem connecting to my wifi, It no longer works. I ...
0
votes
0
answers
52
views
Wifi not working on ubuntu?
I recently updated to Unbuntu 24.04 LTS version. During that day everything worked fine but today I encountered a problem connecting to my wifi, It no longer works. I restarted my computer, but I can ...
0
votes
0
answers
51
views
Unit network-manager.service not found
I installed node.js then it started removing something then I found out I couldn't access my network (wifi nor network adapter). I have tried to run different program still same.
15
votes
1
answer
2k
views
Where are WiFi passwords stored in Ubuntu 24.04?
In the past, WiFi passwords can be found in /etc/NetworkManager/system-connections/. With the new Ubuntu 24.04 Noble Numbat, that folder is empty (even as I am using home WiFi now to post this ...
- 8,007
0
votes
0
answers
319
views
Ubuntu 24.04 LTS VPN Connections in Network Manager
I've done a profile change on my laptop to have domain logins. In doing so, I copied all config files in my home directory to a temp location, and then into the new home directory, obviously doing a ...
-1
votes
1
answer
199
views
24.04: network-manager-openvpn-gnome lost advanced settings
after installing 24.04, there does not seem to be any way to get 'Advanced' settings on network-manager-openvpn-gnome to set parameters such as cypher type, mtu, etc.
Is that a bug or has the setting ...
- 3
0
votes
0
answers
40
views
Wifi Driver Adapter not showing or not working
I Having a Asus Tuf f15 Gaming laptop , In my laptop suddenly wifi adapter not showing or working but if restart 3 to 5 times wifi driver showing but after few seconds laptop get hang !
Can someone ...
- 11
0
votes
1
answer
54
views
DNS precedence rules for multiple interfaces
In 24.04, I have multiple network interfaces - my home WiFi, and then a separate ethernet interface (really, a LTE modem that presents an ethernet device) which has access to my employer's network.
I ...
- 41
0
votes
1
answer
73
views
Ethernet & USB Dongle not working
My machine running Ubuntu 22.04.2 LTS is unable to connect to the internet. The ethernet and Wirless dongle do not appear as options in the settings and I'm unsure on how to fix this
The wireless ...
0
votes
0
answers
88
views
Unable to Connect to Internet After Upgrading to Ubuntu 22.04.4
On Thursday, My OS updated to 22.04.4, and the nightmare began.
Everything worked fine until Friday morning when even the network settings on my PC disappeared. I received the "NetworkManager not ...
- 1
1
vote
0
answers
122
views
Unable to connect to wifi on my Ubuntu 22.04
Here are some of the log messages:
dmesg:
`gnome-shell' uses wireless extensions which will stop working for Wi-Fi 7 hardware; use nl80211
[ 37.086239] wlo1: authenticate with e6:e1:33:77:01:cd
[ ...
- 11
-1
votes
1
answer
53
views
Wifi menu not showing but card detected
I just installed ubuntu 24.04 and I have a wifi card (Aorus GC-WBAX200).
I don't have the wireless menu in the top right corner. And when I go to settings, I only see the wired connection.
When I run ...
- 109
1
vote
0
answers
236
views
Ubuntu 24.04 server with NetworkManager does not configure eth0
I installed 24.04 server on a Raspberry Pi 4. The initial boot recognizes eth0. After I installed NetworkManager, I created a netplan configuration for eth0, wlan0, and wlan1. Upon reboot, eth0 was ...
- 11
0
votes
1
answer
313
views
Slow speed Ethernet issue on Ubuntu 24.04
I recently changed my system to Ubuntu from Windows and I use my mobile and USB ethernet to connect, I used to get 500+ mbps on Windows by using USB tethering, but on Ubuntu 24.04 I am getting only 4 ...
- 1
0
votes
0
answers
52
views
Ubuntu boots into a blank screen when NetworkManager is enabled
Question
I stumbled upon a peculiar situation in Ubuntu Desktop 22.04.4: If the NetworkManager service is enabled, the PC boots to a gray-colored blank screen, like when the display monitor is off. I ...
- 101
0
votes
1
answer
133
views
Initramfs wants to start ATA-over-Ethernet before mounting local (!) root partition
I'm on 22.04 and just did a dist-upgrade to upgrade some helt-back packages, which went through fine. However, my boot now seems to depend on acquiring a DHCP-lease on my ethernet interface.
(Side ...
- 167
0
votes
0
answers
2k
views
Where's NetworkManager in ubuntu 24.04?
The NetworkManager service is absent from my ubuntu server 24.04. I still get internet connections, but I can't manage them through systemd like before.
Is it really a bug, or is it by design, in ...
- 109
0
votes
0
answers
105
views
Ethernet Disabled after software update reboot 5/4/2024 22.04.4 LTS -solved but WHY?
Symptoms: No Internet, Networking Icon at the top is gone, the settings gui shows no interfaces. ifconfig by itself shows the loopback interface and nothing else, but an ifconfig -a shows any and all ...
0
votes
0
answers
27
views
How can i bridge eth interfaces with no bridge (let me explain)
I have a device that has 3 ETH interfaces.
This way I installed the Ubuntu server on it to use the Pi-Hole application
I want to use my ETH0 to receive the Wan cable from my internet provider moden ...
0
votes
2
answers
197
views
L2TP IPSEC not working after upgrade from Ubuntu 20 to 22
I had configured on Ubuntu20 which was working fine. Recently I upgraded the system to Ubuntu 22.04 but now I am unable to connect to the office vpn.
I am attaching the logs
journalctl -xe
May 03 12:...
0
votes
1
answer
59
views
WiFi disconnect-reconnect loop when using NetworkManager
It's as the title says, when I use the desktop GUI tool to connect to WiFi, I end up with my WiFi disconnecting and reconnecting every couple of minutes.
Here's part of the output from the syslog via ...
- 367
0
votes
0
answers
31
views
wlan0 won't establish connection after MAC change UBUNTU Touch
I am trying to change the MAC address of my wlan0 device, I tried with ifconfig wlan0 hw ether. I tried also macchanger, but after I changed it WiFi won't establish a connection. It sees the WiFi ...
0
votes
1
answer
151
views
how to specify additional options to openconnect when invoked via nmcli?
I use mlcli to connect to a VPN, like this: nmcli conn --ask up myVPN. Under the hood this invokes openconnect:
\_ bash
| \_ nmcli conn --ask up myVPN
| \_ /usr/sbin/openconnect --authenticate ...
- 101
1
vote
2
answers
295
views
Can't resolve any DNS addresses, resolveconf is not installed (and can't be installed)
I just updated to 24.04. Ever since, my machine hasn't been able to resolve any DNS names, making it impossible to update or install any packages.
I've followed numerous forum posts saying to edit ...
- 11
0
votes
2
answers
244
views
IpVanish VPN failed to connect
I am trying to install IpVanish on Ubuntu 23.10, but I get connection failure every time, the activation of the network connection has failed
VPN settings:
IPV6 settings:
0
votes
1
answer
114
views
Find out the IP addresses given through Network Manager to clients connected to my desktop
On my laptop (Ubuntu 22.04), I needed to share my internet connection (from my phone's hotspot) with another box (a router) connected to my laptop connect through ethernet. The router is the laptops ...
- 4,884
1
vote
0
answers
171
views
Intermittent WiFi Connectivity Issue: "No WiFi Adapter Found" in Ubuntu 23.10 with Intel AX210
I'm experiencing an issue with my (Intel Corporation Wi-Fi 6 AX210/AX211/AX411 160MHz (rev 1a)) wifi card on my desktop running Ubuntu 23.10. Initially, the WiFi functions correctly—I'm able to ...
- 111
0
votes
0
answers
33
views
i have installed ubuntu on my laptop yet i cant connect to the internet i have figured out it is a DNS configuration error how do i solve it
I have installed Ubuntu on my laptop bare Metal the latest version of 2024
if I try and access the internet from any browser I can't because of name resolution
if I ping an IP directly I get a ...
- 1
0
votes
0
answers
28
views
1Gbe Interface stops working when MTU set to 9100 on 100G interface
I have a server with 2x1gbe ports LOM and a single port 100G nic.
Our 1gbe network is different than our 100G network and both have access to the internet. I would like to be able to use both ...
