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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Network Problem, when trying to connect to Eduroam Wifi
I can connect fine to any other networks.
And I can also connect to this wifi, when I am at the center of it, but it's like when I get a bit too far from its original startpoint it gives up on ...
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VPN connection in Ubuntu 22.04 throws "MS-CHAP authentication failed"
I have Ubuntu 22.04 and a VPN that allows me to work within the servers of the company I work for. Everything worked well until today.
Now, when I try to connect, it says "Authentication failed&...
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Running app/VPN for a single user
So I have done research in regards to installing an app for a single user, I have a VPN app which I can install on ubuntu desktop, but it installs system wide, on a second user account when I launch ...
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Connectivity Issue on Ubuntu 22.04 LTS - Wi-Fi Network Drops
I am encountering a persistent issue with my Wi-Fi network on Ubuntu 22.04 LTS. After connecting to a Wi-Fi network, it works fine for an undetermined period, but then it becomes inaccessible on my ...
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Wifi internet is not working in my ubuntu system
I have installed Ubuntu in my system but when I am using Wi-Fi then after sometime the Wi-Fi internet is automatically shut down
When I check my wifi driver it shows me something like this
*-network ...
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open vpn connection error after traveling to another country
I have been trying to connect to an open VPN server that was working fine before until I traveled to another country last week and now the VPN isn't connecting
VPN logs:
Sep 15 12:38:38 fawrama nm-...
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Problem with network interfaces in Wireshark
I have the latest version of Ubuntu on VMware virtual machine. I have to capture layer 2 (802.1 Q) packets in Wireshark, but the problem is that when I start Ubuntu I cannot capture these types of ...
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WiFi periodically switches between 2.4GHz and 5GHz
I noticed janks and disconnections during online conference call and here is what I found:
[Issue]
bsdson@HP-EliteBook-840-G7:~/Desktop/0911_wifi_disconnect$ grep "kernel.*disconnect" syslog
...
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Network unreachable after Ubuntu VM movement
Setup: I am using VirtualBox 6.1.40 r154048 (Qt5.6.2). Windows 11 host OS. VM is Ubuntu 22.04.1. VM is using HostOnly Network adaptor.
Initial Status: Ping was working from Windows to a VM and vice-...
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ifupdown-wait-online.service (even if disabed) / xfce takes 5 mins to load
I'm using Ubuntu 22.04 right now and ifupdown-wait-online.service takes 5 mins to load,as well as xfce. I gave a :
# systemd-analyze blame
and this is the result ; is exactly like I've thought :
...
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Ubuntu 22.4 Wi-Fi keep disconnecting at random intervals
This started out of the blue but my Wi-Fi to my ubuntu machine and this machine only keeps disconnecting and not reconnecting(failing to reconnect?) but when i connect it manually it connects without ...
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802.1x wired authentication: How to make NetworkManager ask for identity every time?
I want networkmanager to ask for identity/username every time I connect to the wired network, how can I make this happen?
My current configuration is:
802.1x Security: enabled
Authentication: ...
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Ethernet not working, Wi-Fi works normally
$ nmcli
enp7s0: connected to Wired connection 1
"Realtek RTL8111/8168/8411"
ethernet (r8169), F8:75:A4:66:B9:DA, hw, mtu 1500
ip4 default
inet4 192.168.1.10/...
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WiFi SSIDs with 2 almost identical names - OS glitch or security consern
I noticed that in the last few days my computer connects to the network automatically (i unset the autoconnect).
Today i opened the wifi network settings and noticed that i am connected to "...
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wifi connected but not working after sleep/suspend
I have recently upgraded to Ubuntu 20.04 and noticed that after sleeping/suspend the wifi doesn't work. The connection is established to the wifi but webpages are just not loaded. If I restart the ...
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Network Card "UNCLAIMED", no USB mouse and not able to connect Android phone
I have googled and looked on here for answers to this problem and it seems quite common, but so far none of the solutions have worked for me.
This seemed to start after an upgrade and seems from ...
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Network Manager not setting static ip
I installed ubuntu server 20.04
I set a static ip during install
I have ethernet connection.
I installed Network Manager.
I enabled and started:
#systemctl start NetworkManager #systemctl enable ...
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Ubuntu 20.04-desktop wired connected but unable to access the Internet
As mentioned in the title, my machine is Ubuntu 20.04 desktop, and the wired network is connected, but I can only ping the local area network and cannot access the internet:
There is no problem with ...
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"activation of network connection failed" error for the all my wifi connections
I have installed Ubuntu 22.04 on Windows 10 with dual boot, and I can't get the any of my wifi connections to work.
When I run nmcli connection up (wifi-connection-name) it says
Error Connection ...
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Overview of Ubuntu Networking
I use Ubuntu to run quite a few NX Witness Video Surveilance systems in varuious networking setups. Usually just a flat network with a single NIC server. But sometimes we run dual NIC's. I can get ...
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Wifi connection loops on ubuntu
I'm no expert in networking so I think I need a helping hand.
I installed ubuntu 22.04 yesterday and connected to my home wifi without any problems (I think, because I quickly switched to a wired ...
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Copy info from DHCP to Manual settings in Network Manager?
What I want to achieve is to get all info from DHCP (DNS servers, search domains, IP) as the starting point for my manual settings.
Example: what I do right now is to set is as Automatic and then run ...
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SELinux enforcing blocks network interface
I have installed SELinux on an Ubuntu Pro Server with the following packages:
policycoreutils, selinux-utils, selinux-basics, auditd.
The problem appears when I set SELinux policy to "enforcing&...
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Manually search and install WiFi driver [duplicate]
I have a MSI Prestige 14 in which I'm installing Ubuntu 22.04. However, both the live session and the installed OS seem to not find my WiFi card and only Ethernet conection options are aviable. The ...
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2 Ubuntu servers, A is connected to B via ethernet. server B has 2 NIC, one of is connected to the internet. A cannot see B or the internet
I have one ubuntu server running 20.04 with 2 NIC – one connected to the internet gateway and the other connected to another ubuntu server running 22.04. I cannot get the computer running 22.04 to ...
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Ubuntu 20.04. How to prioritize wireless (or any other network) card?
There are a lot of similar questions, but all of them ask about prioritizing traffic (with metric as a solution). I want to use only one network card at the same time. For example, if the external ...
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How to use vpn in shared bridge connection
Laptop is connected to wifi. Laptop also provide internet to another machine (M1) with ethernet port using bridge connection. Now when i use VPN in laptop, it works fine but the vpn is not available ...
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IPv6 routing issues with Vodafone CZ modem
IPv6 used to work for me but something must have changed either in Ubuntu/Xubuntu or in the ISP (Vodafone CZ) modem about two months ago.
When I set the Network Manager UI to "Automatic", it ...
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I am not able to connect wifi through wifi adapter while my laptop's inbuilt wifi is doing so
I am using Dell laptop and it has old wifi driver. So I am using Tp-link AC1300 T3U for my wifi connection. When I connect to wifi, it shows connected in settings but actually there is no internet ...
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Ubuntu 20.04 unable to ping domains but can ping IP addresses
Some how I've messed up the DNS after a failed app install! I notice that in /etc/ there are 3 resolv files:
resolv.conf
resolv.conf_bak
resolv.conf-tmp
resolv.conf contains:
#Generated by ...
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Various problem when upgrading from 20.04 to 22.04
I encountered several problems when upgrading from 20.04 to 22.04
First, I upgraded 20.04.
Something went wrong as I needed to boot then NetworkManager was not started.
When trying to start it, I got ...
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MSI X670E Tomahawk Wifi motherboard doesn't support network on ubuntu
I setup a new machine and the ethernet and wifi isn't working on the motherboard. I plugged in a USB-ethernet adapter, and I have internet. I contacted MSI, and they say they don't support linux which ...
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Error when setting static IP
when I install DHCP the network service is normal, but when I set the static IP the network shows a question mark as shown. I am using Ubuntu 20.04 installed on VMware.
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Networking is fundamentally broken
I'm running 22.04 and I have troubles connecting to a WiFi network. The problems manifest differently every time, but right now it's in a state where Network manager says connected, but I cannot ping ...
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Wireless problem: I can't connect to any wifi even if I can see the SSID (Xubuntu 22.04LTS)
I just installed Xubuntu 22.04. Everything works fine except Wi-Fi.
I managed to connect with a cable and did all the software updates, but the problem still remains. When I try to connect to my ...
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After I stop NetworkManager and restart it, I still don't connect to wi-fi?
I'm using Ubuntu 22.04.2 LTS
For context I'm trying to get Wireshark to monitor my wifi interface and having trouble.
These are the commands I am using:
1.sudo service NetworkManager stop
2.sudo ip ...
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VPN keeps my internet access running in Ubuntu 22.04 and stops when i disconnect from VPN
I am using proton VPN and due to the ongoing issue, I have ran this in terminal
'''sudo service network-manager restart '''
but after that my VPN connection stops responding and a popup message ...
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ndisc: failure sending router solicitation
I am new KDE user (migrating from a Mac) using tuxedo OS (ubuntu 22.04)
When I connect to some public wifi networks, my OS fails to connect. I checked the logs of NetworkManager and I found this:
...
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Ubuntu 22.04 LTS Bridged networking host DNS not working after reboot
I seem to have a bit of an odd situation here. I just setup bridged networking on my Ubuntu desktop using nmcli, and everything was great until I rebooted. I set it up so that the bridged network ...
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Wifi Issue with Intel AX201
Please read the detailed issue as below:
Network Manager:
Wifi Settings:
Results of lshw -class network:
Results of lspci:
Results of nmcli:
Wifi is not disabled in the BIOS.
Results of rfkill:
[]...
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eth0 is gone. Ubuntu 22.04 only sees lo
I am using Ubuntu 22.04 with NetworkManager. eth0 has disappeared, and the internet does not work. The ip a command only shows lo. There is no /etc/network/interfaces file at all. The ls /sys/class/...
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Intel onboard Wi-Fi repeatedly disconnects after a few minutes
I have temporary connection when I turn on the Wi-Fi. However, after a few minutes, it have no access to the Internet although the connection signal to the access point is still strong and stable. I ...
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Ethernet/H/W utility that determines whether or not a PC / the OS has Auto-MDIX
What is an Ethernet or H/W utility that can determine whether or not a PC and/or the OS has Auto-MDIX (Automatic Medium-Dependent Interface Crossover) feature that allows to automatically detect and ...
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Ubuntu 22.04 LTS Network and Settings disappeared
I was installing Wine, when my internet dropped. I went up to open my settings and check what was wrong, but when I clicked on the settings button in the drop down it wouldn't do anything, I watched ...
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Unable to run network manager
i have a w541 thinkpad running ubuntu 20.04.6
I work for an isp so i am often in "Advanced Network Configuration" to edit vlan interfaces on my machine, which i have been doing success fully ...
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Connecting 2 Virtualbox VMs to Open vSwitch running on another Virtualbox VM
I have 3 Ubuntu 22.04 VMs created using Virtualbox. My host machine is Windows 10. One of them is running 5G core emulator, and the other one is running UEransim. I was able to connect UE to 5G ...
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ubuntu 20.04 wifi connection is bad and not stable
I know that there are questions about this but I tried all those answers but my problem is not disappeared. The problem is, when I go to the additional drivers, there I can see the wifi device Realtek ...
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How to configure a WLAN connection for an SSID that is not enabled right now
I'm struggeling with an attempt to configure a WLAN connection in an Ubuntu system (20.04), where the access point is not yet visible.
I try to prepare a laptop for use with a WLAN, but I have no ...
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Wifi randomly disconnects, No visible networks until reboot 22.04.2 LTS
My wifi randomly disconnects & doesn't reconnect, I tried turning it off and then on again but that makes it worse and the network names are even no longer visible.
I've tried all the solutions on ...
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When change the hostname the content of the file /etc/hosts must be updated manually?
I work with lubuntu 22.04. To set the hostname I would like to use the nmcli command as following:
nmcli general hostname "new-hostname"
The previous command set the new hostname in the ...
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