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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57
votes
1answer
105k views

Ubuntu GNOME 17.04: wi-fi not working — mac address keeps changing?

My Panda USB wi-fi adapter works just fine on 16.10, but when I try to connect to my wi-fi router in 17.04, GNOME network manager reports "Connection failed." I did some tinkering, and noticed that my ...
85
votes
7answers
86k views

Last upgrade crashes network manager (no internet connection, no applet)

While upgrading today, something caused my wireless network manager to disappear. Not even connecting via wired connection. This error is being shown by files: **(nm-applet:2716): WARNING **: Could ...
56
votes
12answers
164k views

What is the proper way to change the DNS IP?

I suspect that the name server provided by my ADSL modem/router is buggy. Whenever I browse to a website for the first time in ubuntu, resolving the domain name takes at least 15 seconds. To work ...
114
votes
4answers
325k views

How to connect and disconnect to a network manually in terminal?

Since the network manager is troubling me so much I want to replace it (possibly wicd orNM from ppa:volanin). I do not know how to connect and disconnect to the network through the terminal without ...
42
votes
5answers
89k views

How do I change / spoof my MAC address and easily switch between multiple ones?

My router can do port-forwarding based on MAC addresses. That is, a specific MAC will get a specific IP, for which I can configure a set of ports to be forwarded. In order to easily change that set of ...
64
votes
5answers
300k views

How do I fix DNS resolving which doesn't work after upgrading to Ubuntu 13.10 (Saucy)

After upgrade to 13.10 my DNS resolving fails. It seems the DNS servers which I get by DHCP (LAN) are not used. I could temporary solve the problem by adding nameserver 8.8.8.8 to /etc/resolv.conf. ...
147
votes
4answers
390k views

How to connect to WiFi from the command line?

Other posts seems to be addressing more complicated network connection issues from the command line. The Unity panel Network indicator/button doesn't respond too well sometimes - it keeps trying to ...
159
votes
11answers
344k views

network manager says “device not managed”

I used to be able to share my network connection by editing the Auto Eth0 to share with other computers in the Ipv4 section and now I upgraded my laptop to 11.10 . Now are there no wired connections ...
32
votes
4answers
48k views

Ethernet device not managed

I am using Ubuntu 16.10 and recently I have not been able to connect to internet using Ethernet. The network manager shows device not managed. The WiFi network is working fine. I've tried the ...
34
votes
8answers
120k views

Create WiFi hotspot on ubuntu

Although many questions have already been asked regarding WiFi hotspot, I didn't get any of the solutions working for me. I connect to the Internet using a 3G Dongle of Huawei 3772 (Vodafone). The ...
30
votes
4answers
36k views

14.04 - Network manager stopped working

When I started my laptop, there was no network service, and also no network icon in the top bar. It gives an error when I start OS like "Sorry, Ubuntu 14.04 experienced an internal error". When I ...
36
votes
7answers
54k views

Network manager forgets wireless password after sleeping or powering off

Every time I restore my computer from sleep or turn it on a window pops up asking for my wireless password. Once I enter it it connects successfully, but this happens every time. I'm using Ubuntu 11....
14
votes
3answers
41k views

Ubuntu 15.04 network manager causing slow boot

Since upgrading from 14.10 to 15.04 a few days ago the boot time, grub OS screen to login screen, has increased from 12 seconds to about 40. This is my systemd-analyze critical-chain output: The time ...
15
votes
1answer
56k views

Lubuntu nm-applet wifi icon missing [duplicate]

I have a Lubuntu (now 14.04) installation. Recently, I logged in to find that the Wi-Fi icon had disappeared, and there was some sort of a keyboard icon in it's place. I have restarted multiple times, ...
41
votes
4answers
87k views

NetworkManager not populating resolv.conf

I recently upgraded from 11.10 to 12.04, and now NetworkManager isn't populating /etc/resolv.conf when connecting to wireless networks, when it had been working perfectly in 11.10. I'm not seeing any ...
69
votes
5answers
31k views

How to manage available wireless network priority?

I'd like to move up and down available wireless access points, setting priorities as we can do in Microsoft Windows. I can't remember to have ever succeeded in this since using network-manager. Maybe ...
31
votes
3answers
57k views

How do I setup OpenVPN so I can securely use the internet from an unsecured hotspot?

Goal: I want to be able to securely use the internet via my home PC while my notebook is connected to an open hotspot/access point. I do know that I can use a SSH tunnel/SOCKS proxy, but I don't want ...
56
votes
9answers
490k views

How do I set a static IP in Ubuntu?

I am a new with Linux, having years experience with Windows servers/desktops and am having issues setting a static IP. I am using a method used for previous versions of Ubuntu, which doesn't seem to ...
44
votes
6answers
86k views

Ubuntu 18.04: switch back to /etc/network/interfaces

Starting sometime around Ubuntu 18.04, the Ubuntu devs stopped using the classic /etc/init.d/networking and /etc/network/interfaces method of configuring the network and switched to some thing called ...
26
votes
12answers
146k views

How to reinstall network manager without internet access?

Unfortunately, I uninstalled network-manager-gnome using sudo apt-get remove --purge network-manager. I was trying to reinstall it from but without internet connection I cannot do so. What is the ...
6
votes
1answer
4k views

Unreliable wireless connection with an Intel Centrino Advanced-N 6230

I know there are many questions on this site about wifi issues but I have searched and can't see to find an answer to mine. So here is the deal, a few weeks ago my house got a new router and since ...
20
votes
4answers
88k views

Network Manager Icon disappeared 14.04

So a couple of weeks ago my network manager icon stopped appearing; I still get automatically connected to my saved networks and the internet works fine, etc. If I go into System Settings and look at ...
16
votes
5answers
97k views

How To Debug and Fix PPTP/VPN Client Connection

I am asking a question, which has two sub-questions. Those are how can I get VPN to work on Ubuntu 12.04, either by getting the built-in pptp VPN to work or through manual configuration. Microsoft ...
27
votes
4answers
64k views

Network manager indicator missing

I recently upgraded from 11.10 to 12.04. My first attempt failed, and I received an error stating that not all of the required packages were downloaded. Before (successfully) attempting again, I ...
23
votes
3answers
40k views

DNS not working after upgrade 17.04 to 17.10

I've just upgraded my laptop from Xubuntu 17.04 to 17.10. After the final reboot, DNS has stopped working. This is obviously a problem! I can ping known IP addresses; just no DNS resolution. I've not ...
21
votes
2answers
24k views

How do I change Wi-Fi Hotspot settings in Ubuntu with GNOME 3?

How do I manage my hotspot connected devices or change the hotspot password? I can only see the Network Name, Security type and the Password but I can't seem to manage users or the network properties.
21
votes
4answers
87k views

How do I re-install Network Manager without an internet connection?

I have only wireless connection, one computer with a connection and 4gb usb . My second computer has no network connection, because I have deleted it from the software center. However, now I want to ...
29
votes
14answers
26k views

Ubuntu 18.04 - Ethernet disconnected after suspend

Ethernet does not resume after suspend. sudo service network-manager restart does not work. Only restart solves problem.
23
votes
1answer
41k views

Where to set proxy ignore list?

I upgraded to ubuntu 11.10 from 11.04, shocked to see few things... My system is behind a proxy, so I did set a proxy setting. Being a web developer, I want to remove a lot of addresses that I type ...
13
votes
1answer
33k views

16.04 LTS wifi connection lost randomly every 5 minutes [duplicate]

First I had this issue described here 16.04 LTS wifi connection issues but nobody was able to provide a valid answer. Recently this wifi connection issue gets even worse. I would lose wifi connection ...
20
votes
6answers
18k views

How to disable notification from network-manager

Can i disable all libnotify related notification from Network Manager ? 'Edit Connection' dialog doesn't help out
5
votes
3answers
24k views

Ethernet connection Issues on Ubuntu 16.04

Let me preface this by saying that I've taken a look at the other ethernet & 16.04 issues on here and believe mine to be different. I'm having issues connecting to the internet on a new ...
20
votes
3answers
32k views

What does NetworkManager-wait-online.service do?

NetworkManager-wait-online.service fails at boot and it delays my startup
1
vote
2answers
2k views

Is it possible to remove my default gateway from /etc/resolv.conf after successful VPN connection?

I have configured PPTP VPN connection on Ubuntu 16.04.3 LTS via NetworkManager (nm-pptp-ppp-plugin) and it works. My configuration: VPN Gateway User name Password Advanced - set some options on PPTP ...
22
votes
2answers
7k views

Wired connection icon is displayed instead of Wifi icon - Ubuntu 16.04

I am connected to a WiFi network but wired connection icon is shown: Screen-shot of the problem: I also can't see other available WiFi networks in order to connect to them. Output for lspci -knn | ...
9
votes
3answers
11k views

How to Add dnsmasq and keep systemd-resolved (18.04)

I want to get fast dns resolution with dnsmasq and keep the default systemd-resolved. Looking for an elegant way to do this
18
votes
2answers
13k views

How do I disable network manager permanently?

I'm using Ubuntu 18.04.1 LTS. I want to disable network manager on an Ubuntu machine, because (1) I don't need it, (2) I prefer having hardcoded configuration, and (3) network manager regularly causes ...
35
votes
6answers
124k views

How can I completely remove NetworkManager?

I want to disable NetworkManager entirely, and have my eth0 and wifi connections unmanaged. My eth0 on my main linux box is unmanaged and I have no issues with it, I want to do the same to my other ...
2
votes
2answers
1k views

How to decrease the boot time

I have been checking some systemd-analyze outputs and I actually don't have a crucial problem with my boot time but just wondering whether I can decrease it further. I'd like to mention that I'm using ...
1
vote
3answers
3k views

wifi still sleeping when resume

When I put my desktop in hybernate and then put it back on the wifi is gone. It is simular to the problem described here. But to fix it you have to run a command sudo nmcli nm sleep false. But the nm ...
17
votes
6answers
23k views

Make Network Manager restart after dropped connection?

Using Ubuntu 11.10 (Unity 3D) and a cable (DSL) internet connection with no router or modem. If I disconnect my internet connection, I can just reconnect by clicking on the network manager icon and ...
24
votes
4answers
39k views

How do you configure desktop for a static IP address?

By default Ubuntu uses DHCP and Gnome NetworkManger to configure interfaces. This is not optimal in many cases. How to configure a desktop machine for a static IP address that applies to all users? ...
18
votes
7answers
236k views

“Enable Wireless” option is disabled in network settings

I'm using Ubuntu 11.10 (dual booted with Windows 7) but I'm unable to access Internet wireless even though I can do so on Windows 7. The output for rfkill list all is given below: rfkill list all 0:...
8
votes
3answers
46k views

How to enable/disable mobile broadband from terminal?

I use ZTE USB Modem on Natty Narwhal. Every thing works fine but sometimes it get disconnected. I want to write Shell script that reconnects mobile broadband if it is disconnected or the received data ...
25
votes
6answers
44k views

No more AnyConnect compatible vpn transport in Ubuntu 16.04?

Following my previous experiences with setting up Cisco AnyConnect VPN connections on Ubuntu 14.04 I tried the same approach here by installing packages: sudo apt-get install -y network-manager-...
8
votes
5answers
34k views

Wired Connection shared with other computers connects then disconnects in the nm-applet [closed]

connecting with shared with other computers connection in NetworkManager. Other computer gets IP but NetworkManager disconnects the shared connection after half a second. This same setup worked ...
18
votes
4answers
220k views

connect: Network is unreachable? - ping

When I attempt to ping google's dns or any outside the network I get connect: Network is unreachable? I can't update either which I put down to this I am new to networking... And Ubuntu. But these ...
16
votes
3answers
37k views

Both DHCP and static IP addresses simultaneously on one interface

We can use multiple IP addresses for a single interface in Linux (eg. eth0:0, eth0:1). But can we use DHCP and static IP at the same time? eth0:1 should have a static IP address and eth0:0 should be ...
4
votes
3answers
35k views

How do I set up a PPPoE connection?

I have a new broadband connection and i want to connect it using ubuntu. I have a user name and a password, nothing more. I want to know how to connect to such network, how to create the connection?
4
votes
1answer
9k views

Network Manager refusing to manage wired interfaces [duplicate]

After a new install of Kubuntu 16.10, I'm unable to convince Network Manager to manage my wired network interfaces. I've already confirmed that I can use the wired interfaces by configuing them ...