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.

Filter by
Sorted by
Tagged with
3 votes
3 answers
5k views

Use dnsmasq as system DNS service

Following How to disable systemd-resolved and resolve DNS with dnsmasq? However, I followed it as much as I could, but still wasn't able to properly replace systemd-resolved with dnsmasq -- If i put ...
1 vote
1 answer
561 views

Wifi disconnects frequently Ubuntu 18.04 (journalctl NetworkManger error codes)

There are obviously a number of similar questions here, e.g.: Wifi Frequently Disconnecting (timeout) https://unix.stackexchange.com/questions/525272/ubuntu-18-04-keep-disconnecting-from-home-wifi-...
3 votes
3 answers
920 views

mount failing on /etc/NetworkManager/dispatcher.d/

I have a script that tries to mount a cifs share when the VPN is connected (after I've already logged in to the desktop - so kerberos ticket is issued). It's in : /etc/NetworkManager/dispatcher.d/ #!/...
1 vote
0 answers
253 views

`Configure VPN` is grayed out and I can't configure the VPN

I was upgrading my system from 14.04LTS to 16.04LTS, and during the time I ran this: add-apt-repository --remove ppa:seriy-pr/network-manager-l2tp After upgrading, I noticed that the Configure VPN in ...
1 vote
1 answer
2k views

Network sporadicatlly freezes while performing a wifi-scan Ubuntu 20.04

After upgrading from Ubuntu 18.04 to 20.04 (network-manager version 1.22.10-1ubuntu2.1), I am getting sporadic WiFi network connectivity. I'm using the r88x2bu network driver from the rtl88x2bu-dkms ...
1 vote
2 answers
3k views

can't add vpn .ovpn file in network manager

I am trying to connect to a vpn using a .ovpn config file. I am running Ubuntu 20.04.1 LTS. :~$ openvpn --version OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/...
0 votes
0 answers
252 views

Server loses connection after three days

I'm having some trouble with an Ubuntu 20.04 server which loses connection after three days. The server boots using Dracut. What it does, after booting up and getting an IP address from the DHCP ...
2 votes
1 answer
649 views

My system filling Gigabytes of log files within minutes

My /var/log/syslog and var/log/kern.log fills up very fast ang It freezes my computer and even shutdown, restart don't work. My wifi stops working, and even If I restart network-service using terminal ...
0 votes
0 answers
205 views

No edit connection option in ubuntu 16.04

I have installed ubuntu OS 16.04 on my new system. I am not able to see network interfaces on terminal, only loopback 0 interfaces is what i see. After few troubleshooting command from youtube/google ...
0 votes
1 answer
520 views

Skip Unneeded services in Ubuntu boot

I wish to skip following services loading in the boot of my ubuntu machine and set up manually later after login in order to spped up startup. All network related services(nmbd, network manager etc) ...
4 votes
1 answer
2k views

How to make Network Manager ignore VMware virtual network adapters

I'm running Ubuntu 16.04, fully updated. The 2 devices listed that are not being managed didn't show up until I installed VMware Workstation 12.1.1. I believe they are from the VMware host-only/NAT ...
1 vote
1 answer
2k views

Ubuntu server 20.04 missing wireds connections in settings

I cannot find the wireds connection on Ubuntu server 20.04 (DELL PowerEdge 2850) I have two networks carts. [Terminal and settings][1] terminal: https://prnt.sc/tyujfh settings: https://i.stack....
3 votes
1 answer
4k views

How do I use iwd in Ubuntu 19.04?

I'd like to replace wpa_supplicant with iwd and use it for my wifi networking. This is so that I can use and test Network Manager using iwd. I can't seem to find instructions around relating to ...
10 votes
2 answers
36k views

Ubuntu 18.04 missing wired connections in settings

I have installed 18.04 Ubuntu Server. Then in terminal installed: sudo apt-get install --no-install-recommends ubuntu-desktop and when I now log into the desktop gui, my network shows as unmanaged ...
0 votes
1 answer
346 views

Cannot ping machine on ethernet while having two interfaces active (Ethernet and Wifi)

As the title says I cannot do it. My computer is connected to the WiFi for internet, and to the Ethernet to LAN communication with the other computer. I have setup the Ethernet connection ipv4 routes ...
1 vote
0 answers
502 views

Network Manager asks to unlock keyring after auto login

After updating from Precise to Trusty I get a popup requesting to unlock the keyring for Network Manager after each login (autologin is enabled). On the Internet people advise to make the connection ...
0 votes
1 answer
586 views

Ubuntu 20.04 newly installed; No ethernet connection

I'm aware of the number of similar questions in this site, but most that I saw have solution's that require special permissions, which in my case are not available to me. I've just insalled Ubuntu 20....
1 vote
0 answers
16 views

How can I use the hotspot functionality?

I'm running 20.04.1 LTS on an iMac using ethernet (internet works fine, I have tried to connect using wifi and it's just fine.) I tried to use the regular method in settings (turn on Hotspot, setup ...
0 votes
0 answers
227 views

hp laptop frequently Disconnect from Hotspot

I completely erased Windows license 2 days ago and shifted to Ubuntu 20.04. In Ubuntu I'm facing Wi-Fi connection issue [unlike Windows 8.1 (64-bit)]. On starting laptop it goes well. But later on, Wi-...
1 vote
2 answers
2k views

No wifi menu and "No Wi-Fi adapter found" but can use netplan to connect to wifi [Ubuntu 20.04]

So I don't have an option for wifi in the menu: Menu And in the wifi tab of settings it says "No Wi-Fi adapter found": Settings But I can still connect to Wireless Networks by editing my &...
1 vote
0 answers
183 views

Nested VPN connections

I'm a molecular biologist that's taken on the role of bioinformatics and system admin for a small bioinformatics server at my university. I'm trying to remotely transfer data between two servers at ...
1 vote
1 answer
1k views

How to setup Adhoc between Kubuntu 12.10 to Ubuntu 12.04

So I'm in a temporary situation. If I get the answer later, I still would like to know the answer. I have 2 laptops, laptop 1 is and old pentium m running Ubuntu 12.04 (The last supported OS for it.) ...
0 votes
1 answer
630 views

DNS goes missing with Static IP via NetworkManager

I know there's plenty of posts/threads/questions/tutorials regarding ubuntu's DNS, network manager innards, and changes in the like between versions ~12 to 14-15+. I'm on ubuntu 12.04, and looking to ...
1 vote
0 answers
2k views

How to fix network change was detected (ERR_NETWORK_CHANGED)?

I recently changed my internet provider. Since then, I'm always getting the following error when navigating to any page and or web-based systems: Your connection was interrupted A network change was ...
1 vote
2 answers
7k views

Won't automatically reconnect wifi on startup (18.10)

Started having this problem in 18.04 before I upgraded. Wifi will not automatically reconnect when I reboot. It requires me to reselect the network and reenter the password each time. Tried ...
0 votes
1 answer
481 views

Renaming Ethernet devices in 16.04

After swapping CPU and mobo, I've had a lot of trouble getting networking running again. I deleted all my original bonding configs from /etc/network/interfaces and uninstalled NetworkManager. It's now ...
0 votes
0 answers
782 views

Ubuntu 20.04 issues with TP Link AC1300 Archer T4U ( rtl8812au )

I can't force my USB wireless card (TP-Link AC1300 Archer T4U with rtl8812au) to work with Ubuntu. rtl8812au-dkms package from Ubuntu repo doesn't help (module is not even loaded when I connect USB ...
1 vote
1 answer
11k views

cockpit manage networking interfaces from the "Unmanaged Interfaces" list

How can i move interfaces between the "Interfaces" and "Unmanaged Interfaces " section in cockpit ? Under what circumstances are interfaces moved to the "Unmanaged Interfaces " section ? I run ...
6 votes
1 answer
5k views

Wireless Network Manager command line ncurses GUI

Is there any software that can manage wireless network connection using ncurses? So I just installed Ubuntu Server 17.04, trying to connect via wireless, but iwconfig not installed, so I install ...
4 votes
1 answer
3k views

Ubuntu 14.04: How to add an Ethernet connection from command line that's editable in Network Manager GUI?

On Ubuntu 14.04, how can I add an Ethernet connection from the command line that's editable in the Network Manager GUI? I have studied nmcli which is the command line tool for the Network Manager. ...
4 votes
1 answer
15k views

Simplest split tunneling solution (per application) for OpenVPN

I use ExpressVPN, and on Android I have an app that will allow me to choose which apps run through the VPN. Everything else uses normal traffic. I can also install ExpressVPN on Ubuntu, but it doesn't ...
0 votes
0 answers
460 views

Unstable internet connection after Ubuntu 20 update

I have an Ubuntu laptop and I am using a wireless adapter to connect over to a wifi. The problem is that the internet connection keeps dropping off every 5 or 10 minutes but the problem is not the ...
0 votes
1 answer
3k views

NetworkManager static routes not applied

The interface has VLAN enabled. on default vlan (management lan, 10.0.0.1/24 physical if "enp0s31f6") I set ipv4.routes: { ip = 192.168.0.1/32, nh = 10.0.0.1 }; { ip = 192.168.1.1/32, nh = ...
0 votes
0 answers
70 views

I Can't connect to wifi (Ubuntu focal fosa)

I bought a new PC. Installed Ubuntu focal fosa latest version and I can't connect to my router, even though I have the correct password. Yesterday I tweaked with it a little bit (I remember setting ...
1 vote
1 answer
1k views

Ubuntu 18.04 - Tp Link dongle - fail connecting network ( model TL-WN821N )

I'm using a fresh installed Ubuntu 18.04 on a PC, which mainly uses a wired network, but a wifi connection is also needed from time to time. For that, I'm using a wifi dongle - which works OK when ...
0 votes
0 answers
538 views

Configure Netplan For VM in Ubuntu 20.04

I just install new server with Ubuntu 20.04 (minimal, no GUI). I have 2 ethernet card with 2 IP public. connect each one with each cable. I want to create VM using virt-install which guide I found in ...
1 vote
0 answers
4k views

Network Manager couldn't reserve IP configuration

I'm using Ubuntu 20.04 LTS I connected to Ethernet to install Network Manager using the following command sudo apt-get install network-manager All went perfectly with no errors. I then start Network ...
0 votes
1 answer
67 views

Network interfaces not enabled at boot

I have an Ubuntu desktop install and I noticed that I can't communicate over any network interfaces until I actually log in and they are activated. Is there any way to have NetworkManager activate all ...
1 vote
1 answer
2k views

Wifi Problem: Connection failed (Activation of network connection failed)

I am using TP-link TL823N V2 wiresless adapter. Everytime I start the computer, the wifi is stopped from connecting with the message Connection Failed (Activation of network connection failed), even ...
3 votes
1 answer
6k views

Enabling serial network devices with ModemManager

When enabling ModemManager, I don't see my serial-based SIM808 FONA in the list of available modems even though I'm able to get it working with pppd. If I start ModemManager with service stop ...
1 vote
0 answers
69 views

Kubuntu wifi: works good at home but bad on my company wifi network

I'm a newbie here and I'm here to ask some help to solve a wifi issue on my laptop. I'm running Ubuntu 20.04 (Kubuntu) and wifi works well on my wifi home (WPA2-PSK): good signal strength and good ...
0 votes
0 answers
405 views

Internet not working settings gui missing

Woke up to having no WiFi or settings option in ububtu 18.04. Tried connecting router directly to laptop, didn't help. My /etc/network/interfaces: auto lo iface lo inet loopback ifconfig gives lspci ...
0 votes
1 answer
799 views

Network Manager: Is it possible to pass CLI options to openconnect (in order to manually resolve the hostname)?

Basically this question has been asked before, albeit with a different flag/argument, and it's been a few years. Since the people who administer my local network have apparently misconfigured IPv6, I ...
8 votes
1 answer
4k views

Openconnect in network-manager does not update resolv.conf

I just updated from ubuntu 19.10 to ubuntu 20.04. Now my resolve.conf does not get updated anymore when I connect to vpn with the openconnect thing in the network manager. This works correctly: ...
1 vote
1 answer
468 views

Ubuntu 20 : Ubuntu doesn't reconnect to WiFi unless I reboot

I am dual-booting my laptop going between Windows 10 and Ubuntu 20 LTS. Initially, I can connect to WiFi, but if I get disconnected for some reason, or if I restart my router, Ubuntu won't reconnect ...
0 votes
1 answer
2k views

How does two OpenVPN connections open the same time work?

I am running OpenVPN on Ubuntu 20.04. I have two VPN's to our offices in two different European countries. I can connect both at the same time I found out. How will that work as far as connectivity is ...
11 votes
3 answers
12k views

How to specify additional search domains for resolver in 16.04 GUI network settings when using DHCP?

With Gnome Ubuntu 14.04, it was possible to specify additional search domains for the resolv.conf, when editing a network connection, like so: But where do I find this field for the "additional ...
20 votes
5 answers
101k views

How to connect to Wifi Network with i3wm?

I just installed Ubuntu minimal with i3wm, but I can't figure out, how to connect it to the wireless network. I already have installed network-manager package. Also I added exec --no-startup-id nm-...
3 votes
4 answers
2k views

How to reset network manager without downtime?

I have an unstable WiFi connection, and the bandwidth frequently reaches 0 without actual disconnection (it is connected but without data transfer). Resetting the network manager by sudo service ...
1 vote
1 answer
2k views

NetworkManager updates to a bad nameserver in /etc/resolv.conf on restart

Whenever I restart my computer NetworkManager sets /etc/resolv.conf to this, my DNS stops working and I get this error in Chrome. /etc/resolv.conf # Generated by NetworkManager search tampabay.rr.com ...

1
27 28
29
30 31
85