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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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wired 802.1X connection: how to force NM to ask for username?

I've set up 802.1X on wired connection (ubuntu 18.04, NetworkManager, PEAP-MSCHAP) modifying it to ask for password every time. The problem is that it works well but filling username field is ...
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Is it possible to rank wireless networks?

When using Ubuntu 16.04.5 LTS, is it possible to rank, in order of preference, which wireless network one's computer should connect to first, second, etc?
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Constant network timeouts since few weeks on fresh Ubuntu 18.04

Since few weeks I have constant network timeouts. Here are logs from NetworkManager: gru 12 11:37:24 r2d2l NetworkManager[975]: <info> [1544611044.3534] connectivity: (wlp3s0) timed out gru ...
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Is it possible for me to deploy Ubuntu studio tools in Ubuntu Canonical 18.04LTS?

I have a powerful machine that is a laptop with Nvidia Gforce graphics, 1TB HDD, 16gigabytes RAM and an i5 processor. I have already installed Ubuntu 18.04 LTS, and since I don't have another machine ...
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How to select Network-type UMTS in mobile broadband in ubuntu 18.04

I am using ubuntu 18.04 and want to connect Huawei E1750 usb 3G dongle, but i am unable to choose UMTS/HSPA(3G) network with it. Also on creating new connection i am inable to get gsm.network-type. ...
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After trying several fixes, WiFi still won't work with error “device not ready.”

My dilemma is as described above. I recently installed Ubuntu LXDE on an Orange Pi of mine, and the wifi adapter (wlan0) seems to be misbehaving. When running nmtui, only the wired connection is shown ...
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network metric: change default for vpn and wifi

I'm trying to configure the metrics on my PCs but most of the questions/threads are about setting different metrics on NIC and I haven't found answers when this involve wifi and VPN. I use VPN only ...
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Ubuntu (alternate) server 18.04: no network interfaces

I installed Ubuntu 18.04 using the alternate server installer. During the installation no network interfaces were detected. I could not figure out how to setup networking (neither ethernet nor wifi). ...
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Stop network manager modifying resolve.conf in Ubuntu 18.04

Network manager keeps modifying resolve.conf and there is no stopping it in Ubuntu 18.04. I tried removing write permissions, change resolve.conf symlink to another file and... I also looked at ...
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How to completely remove network-manager [duplicate]

A few days ago, my computer WiFi was getting interrupted. Because of this, I connected the modem directly to the computer. But I still had a problem connecting to the Internet, and sometimes my ...
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Ethernet - Windows works, but not on Ubuntu 18.04

On my Ubuntu 18.04 laptop the ethernet doesn't work at my home network (also wifi, hotspot, and usb tethering also don't work). But my Windows laptop works at my home network. Also the Ethernet works ...
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Correct way to apply WiFi mac address randomization

I wanted to randomize my mac address on every boot just like in Windows 10. During my quest for that I tried the following - According to this post, starting from NetworkManager 1.4.1+ we can do mac ...
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+100

ASUS PCE cant detect 5ghz network

I have a wifi card with support for 5Ghz. The card is the ASUS PCE AC56. I have installed the drivers for my WiFi card from the "Additions drivers" tab in "Software & Updates", using the "...
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nmcli connection verification failed

I'll paste the sequence of commands I'm trying to run to configure desktop Ubuntu 18.04 NetworkManager according to the answer in this SO question. When I perform the steps in the answer I end up with ...
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if-up.d launches two instances of a single script

Case: On our Ubuntu Xenial(16.04) station I host a bot written in Python that connects to our IRC server that's set to launch in /etc/network/if-up.d/ Our bot was connecting twice though the script ...
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Wired connection doesn't show

thanks for read. I haven't internet some weeks ago, i was joking with the internet configuration and now, i don't know what happen. the internet connection doesn't appaer and i can't connect to ...
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How to repair network after installing Docker + LXD (18.10)

After installing LXD and Docker-CE on (Pop!_OS) 18.10, everything was working. I also installed microk8s but it doesn't seem to be involved here. After a reboot, my PC couldn't access the network in ...
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objective differences between running `NetworkManager` and changing `resolv.conf`

Are there any objective differences between running NetworkManager and changing resolve.conf in the following manners? See method #1 and method #2 below. They appear to produce identical results in ...
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`Network Manager` GUI Missing in Ubuntu 18.04

If I go to Settings > Network I think I'm supposed to be able to select my Wifi Network manager by clicking the gear icon. Shown below to the right of "1000 Mb/s On/Off". But my Wireless ...
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Ubuntu 18 Network Manager Adhoc Wifi

I had a adhoc wifi network setup fine but now with Network Manager I can't seem to get it working. I've followed all the tutorials in google (related to new Network Manager) and the GUI even caters ...
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18.04 - does it force netplan or can I still use resolved.conf?

I kept getting timeout errors on 18.04 Bionic Beaver, until I switched to OpenDNS using these commands sudo rm -f /etc/resolv.conf sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf sudo ...
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Network Connections missing in 18.04 - so how do I setup OpenDNS

This OpenDNS guide explains how to setup OpenDNS on older versions of Ubuntu. I'm using 18.04 Bionic Beaver and it appears the Network Connections GUI is no longer available. So I can't even ...
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DNS issues only on Ubuntu - but not on my iPad

I can load any website on my iPad and it's instantaneous. On my new Ubuntu 18.04 laptop it takes 5-10 seconds to initially load any new website. Subsequent loads of the same website are instantaneous ...
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iwlist scan | egrep -i 'ssid|quality'

Like many people with a Realtek RTL8723BE Wi-Fi controller I have issues catching Networks. I followed the answer from here: https://askubuntu.com/a/1079892/898693 But at point 7,when entering: ...
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Ubuntu MATE 18.04 Network Manager Permissions

I'm running with a fresh install of Ubuntu MATE 18.04 and I'm having trouble figuring out how to provide additional users with the appropriate permissions required to manage the network (Ethernet) ...
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Issue with Ethernet dropping Connection Irregularly Ubuntu-Budgie

I have been running into intermittent ethernet connection issues using a custom build, Ubuntu-Budgie 64, system. I have gone through so many of the other conversations about applying fixes via ...
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Suddenly not able to access resources on VPN network in Ubuntu 18.04?

I'm using openvpn, and had imported my client.ovpn file to Network Manager via the GUI. Up until yesterday I was able to access resources on my company's VPN network without any issues. At first, I ...
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Shorten nmcli connection timeout from 120s to 10s, try a lower priority interface quicker

On Ubuntu 16.04 lts I am using nmcli to manage the network interfaces. I have connections like so. NAME UUID TYPE DEVICE link-local-0 da55e0dd-...
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WiFi disconnects randomly after successful connection 18.04

Following this answer, I uploaded my logs here. I have a Dell Inspiron 15 7567 with Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter and noticed that my friend's Windows laptop and his ...
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Bandwidth shaper for pid, command utility

I've researched and find such utilities. Wondershaper: bandwidth shaper per interface for applications. Trickle: bandwidth shaper for applications. Firejail: bandwidth shaper for pid, once it load ...
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No-IP with a VPN? Ubuntu 18.04

Im sorry if this question have already been asked but i was not able to find any answers after a few hours of searching. I have setup a server at home with Radarr and Sonarr and so on, on it. ...
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xymon-4.3.28/configure.server: 94: .: Can't open build/fping.sh

I downloaded and installed all the prerequisites, and I run a configure file to build xymon. But I am getting the following error: xymon-4.3.28/configure.server: 94: .: Can't open build/fping.sh ...
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Unable to ping 18.04 desktop unless this machine first pings the client, when using networkd instead of network-manager

I'm trying to set up networking with netplan and networkd as renderer on an 18.04 machine. It runs the desktop distribution because it's connected to my TV and used for multimedia, but I'll call it a ...
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WiFi problem in Ubuntu 18.04.1: “activation of network connection failed”

I am using Ubuntu 18.04.1. My WiFi driver is rtl8723be. It was working fine up until yesterday. Now, maybe after an update, I am getting a pop up : Connection failed. Activation of network ...
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136 views

Internet connection drops down gradually in LAN connection in Ubuntu 18.10

After connecting LAN cable 2-3 minutes later I see a question mark in my LAN icon on the top right corner and then I am unable to browse anything. Videos on YouTube are also starting to buffer. But ...
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WiFi doesn't work after suspend on Ubuntu 18.10?

I have a Surface Book dual booted with Windows 10 and Ubuntu, and most of the times when I close my laptop and open it again, the WiFi won't connect. It will see the available networks, but it won't ...
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320 views

`NetworkManager` process kept occupying 100% cpu and network adapter stopped working

On Lubuntu 18.04 on Thinkpad T400, my wifi adapter suddenly stopped working and not recognized by my OS. In top, NetworkManager process kept occupying 100% cpu. I want to kill it with sudo kill -...
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My network manager Not working in ubuntu 18.10

in my laptop i can't use wifi for problem in network manager. when i start laptop. it is connect to wifi,but after 4-5 minute it stop working every time. i reboot many time, install/reinstall network ...
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wrench and gear settings is missing

I have been experiencing some issue with my network cable settings in Ubuntu 18.04. Because it is always getting connected and disconnected time to time. So I found a solution from this site saying ...
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1answer
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Connection works, iwconfig doesn't

I am trying to get information about my wlan0 connection from iwconfig. When I run iwconfig I get this: wlan0 no wireless extensions. When I run ifconfig I get wlan0 Link encap:Ethernet HWaddr ...
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37 views

Setting IP address if DHCP server fails at bootup

Is there a way to set default eth0 setup in linux. I know I can give it a default static IP at boot up with sudo ip route add default via 10.0.0.1 dev eth0. Is there a way to change it to DHCP at ...
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76 views

Where is the connection manager in Ubuntu 18.10?

I have installed Ubuntu 18.10 but I can't find a connection manager. I want to add a connection manually. Any idea?
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Wifi does not allow me to reconnect or show networks after connection drops

I am on 4.15.0-39-generic Ubuntu 18.04.1 LTS with Wifi card Intel Dual Band Wireless-AC 8260. When connection is not so perfect, it sometimes just drops it (which is fine). However after the ...
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Missing EAP methods in 18.10

According to this link, wpa_suplicant supports so many EAP methods. PEAPv0/TLS and PEAPv1/TLS is one of them which is missing in Ubuntu. Ubuntu is using this binary only. Then why mentioned EAP ...
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1answer
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Issue with the my work Okta domain (mywork.okta.com) and openconnect VPN

Since version 14 (and now 18.04), when connecting on my job cisco VPN (with openConnect), I always struggle to have the local domains working correctly. Wen wire connected from my job, everything is ...
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1answer
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How can you monitor total internet data usage across reboots with site detail?

As the question suggests itself, how can I monitor the usage of data on my system. I know about vnstat and have already installed on my Ubuntu. What I want is to know if there is any way I can see as ...
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Wired Connection DNS_PROBE_FINISHED_BAD_CONFIG error on Ubuntu 16.04

I have a Dlink DIR-113 device which acts as a repeater / bridge. It is connected to the main router (D-Link DSL-2750U) via an ethernet cable. When I connect one end of ethernet cable to this repeater ...
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Ubuntu Server 18.04 weirdest connectivity issue - can ping externally but no internal connectivity

I'm running Ubuntu Server 18.04.1 on a Dell 7240 laptop. I have both the ethernet and wifi connected to my network (/24). The IP addresses are reserved by the DHCP server (my Asus router) and dished ...
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How to correct the UI of Network Connections?

I was unable to connect to a network, after executing the command: sudo apt-get install --reinstall network-manager network-manager-gnome and rebooting made it possible to get connected to a known ...
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1answer
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ppp connect random disconnect

when i connect the ppp, the network connection is ok. but after n minuter, the connection will disconect random. 14:54:25 pptp[435]: anon warn[open_inetsock:pptp_callmgr.c:329]: connect: ...