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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1answer
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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 ...
84
votes
7answers
78k 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 ...
38
votes
11answers
113k 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 ...
85
votes
4answers
262k 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 ...
37
votes
5answers
73k 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 ...
31
votes
8answers
105k 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 ...
138
votes
10answers
266k 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 ...
82
votes
3answers
217k 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 ...
29
votes
4answers
24k 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
52k 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....
22
votes
3answers
17k 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 ...
15
votes
1answer
51k 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, ...
47
votes
4answers
205k 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. ...
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 ...
38
votes
4answers
78k 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 ...
45
votes
3answers
18k 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 ...
13
votes
11answers
92k 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 ...
26
votes
4answers
63k 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 ...
14
votes
5answers
87k 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 ...
31
votes
3answers
55k 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 ...
11
votes
3answers
25k 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 ...
21
votes
4answers
79k 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 ...
34
votes
6answers
275k views
Set static IP Ubuntu 16.04
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 ...
9
votes
1answer
23k 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 ...
19
votes
5answers
16k 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
19
votes
3answers
73k 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 ...
1
vote
2answers
862 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 ...
22
votes
1answer
40k 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 ...
16
votes
7answers
203k 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:...
14
votes
3answers
7k 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 ...
28
votes
6answers
94k 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 ...
3
votes
1answer
3k views
Unstable wifi with intel 8260 [8086:24f3] (rev 3a) on Ubuntu 16.04 running on Lenovo P50
On my brand new Lenovo P50 the wifi is unstable. sometimes it connects, sometimes it does not, or just stops working. Sometimes wifi networks are shown in the network manager, sometimes not. Sometimes ...
2
votes
3answers
9k 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 ...
2
votes
1answer
926 views
How do I change Wi-Fi Hotspot settings in Ubuntu GNOME 16.04?
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.
14
votes
5answers
20k 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
35k 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?
...
20
votes
2answers
5k 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 | ...
22
votes
6answers
38k 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-...
11
votes
6answers
22k views
Unmanaged network icon - Network manangement disabled
I was having problems connecting to the internet either by wireless or wired connection.
I keep getting an icon in the systray that has a tooltip that says "unmanaged" and when I click on it I get a "...
8
votes
5answers
32k 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 ...
13
votes
4answers
20k views
How do I remove obsolete Network entries from Network Connection Applet
I see that I can delete networks that my machine "remembers" from nm-applet by clicking on the wireless icon in the panel and selecting "edit connections" -> "wireless". However, sometimes I click on ...
4
votes
1answer
5k 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 ...
6
votes
2answers
22k views
Wifi Not Working On Ubuntu 14.04 Lenovo G 50-30
I am facing problem to enable wifi on my Lenovo G50-30 Below are the command out put please help me out
lspci | grep -i wireless:
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. ...
2
votes
2answers
4k views
Unable to connect to the internet on a Ubuntu 14.0.4 laptop using zte(reliance cdma) AC2739 USB modem
Many Linux/Ubuntu users face this problem -->(connect to internet using modem zte/etc.....) because modern dongles have USB storage + modem+CD ROM,
usb_modes switch blablabla.......................
...
0
votes
1answer
2k views
Able to access web by ip, but not by dns name
I'd like to post a solution to a problem I've encountered in my university. The issue is closely related to this post. I asked the user whether or not he found a solution but he never responded. In ...
99
votes
2answers
131k views
Connect/disconnect from VPN from the command line
I have two VPNs setup on my Ubuntu machine, one using vpnc and one using PPTP. These were both setup using the GNOME network manager interface and work great. However on occasion I need to access this ...
8
votes
3answers
41k 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 ...
13
votes
3answers
34k views
How do I create a non-adhoc wifi hotspot?
I wanted to use my desktop with a wired ethernet connection (eth0) to operate my "TP-LINK TL-WN722N" USB Wifi Adapter (wlan0) as a non-adhoc (infrastructure mode) access point for my Android to ...
10
votes
4answers
22k views
The system network services are not compatible with this version Ubuntu 14.04
I have Ubuntu 14.04 LTS installed on my PC. I have created some new accounts and then after I logged in to my own account there was no internet connection. When I try to open the network settings I ...
6
votes
9answers
71k views
Wireless shows up as disabled, how can I get it working?
$ sudo iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm
...
