NetworkManager is a set of co-operative tools that make networking simple and straightforward.

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42
votes
3answers
79k 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 ...
28
votes
7answers
32k 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 ...
23
votes
9answers
37k 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 ...
11
votes
1answer
30k 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, ...
66
votes
10answers
108k 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 ...
17
votes
2answers
17k 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 ...
8
votes
3answers
28k 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 ...
20
votes
3answers
11k 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
4answers
42k 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 ...
19
votes
2answers
30k 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
35k 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 ...
14
votes
5answers
9k 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
10
votes
3answers
27k 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 ...
30
votes
4answers
42k 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 ...
13
votes
5answers
13k 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 ...
9
votes
2answers
5k views

Connecting to VPN prevents access to normal web sites

I have Ubuntu 10.04 installed with OpenVPN, and when I connect to a VPN, http access to non VPN sites stops working, until I close the VPN connection. To be more specific, both Chrome and Firefox stop ...
4
votes
2answers
4k views

Disable Ethernet permanently to speed up boot time

I do not use the wired Ethernet Card. It seems to me that, Ubuntu is always trying in boot time to check the network via eth0, Which consumes some times and I guess this may slow down the boot process ...
16
votes
1answer
26k 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 ...
7
votes
5answers
28k 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 ...
6
votes
9answers
40k 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 ...
2
votes
4answers
6k 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 ...
2
votes
2answers
803 views

Disabling Network-Manager-Gnome wireless scanning when connected

How do I prevent the default Ubuntu Network Manager (network-manager) from scanning when connected on my Wi-Fi network?
7
votes
3answers
20k 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 ...
10
votes
3answers
12k views

DNS server address no longer stored in resolv.conf; where is it now?

I sometimes switch DNS servers, using the NetworkManager indicator in the taskbar; this worked fine with previous versions, and actually works fine with 12.04, too, except for one thing: I use Conky ...
17
votes
6answers
33k views

NetworkManager tray (nm-applet) is gone after upgrade to 14.04 Trusty [duplicate]

I upgraded from 13.10 to 14.04 and now the nm-applet no longer shows in the system tray. I already tried purging and reinstalling the network-manager-gnome package but that didn't help. When I run ...
7
votes
1answer
2k views

How to set an NFS network?

I want to merge information found here and there in order to record in one answer all steps to set my NFS network between my two Ubuntu PCs This is useful time to time, for example when switching to ...
7
votes
2answers
2k views

Exempt programs from using active VPN connection

When I connect to a VPN, all my network traffic is automatically routed through it. Is there a way to add exemptions to that? I don't know if adding exceptions has anything to do with the VPN ...
4
votes
2answers
2k views

Enforce VPN connection to access the Internet

I'm using a VPN when I'm online at an unencrypted wifi. Unfortunately, at my university the connection is quite unstable and at every reconnect the VPN connection is terminated and I manually need to ...
14
votes
5answers
3k views

Will ConnMan replace NetworkManager on the desktop for 11.04?

In the 10.10 release, Unity on the netbook edition used ConnMan. As Unity is now moving to the desktop for 11.04, will that mean that ConnMan will replace NetworkManager on the default Ubuntu desktop ...
7
votes
1answer
7k views

connect to wifi from 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 ...
7
votes
2answers
6k views

NetworkManager broken after upgrade to Kubuntu Saucy

I had Kubuntu 13.04 on my ThinkPad X220, and I upgraded to 13.10 and I am not able to connect to a wired or wireless connection. The new network tray icon does not show any entries at all. In the ...
6
votes
3answers
10k 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 ...
13
votes
4answers
11k views

Network Manager or WICD?

A couple of years ago when I first began using Ubuntu I had issues with Network Manager and so I switched to wicd which works perfectly. (I forget the exact issues, but wicd solved the problems) I am ...
3
votes
3answers
10k views

How to install network-manager without internet access?

I have been trying to install some kind of network indicator to show my current bandwidth usage on the panel on top of the screen so I decided to install ...
1
vote
3answers
5k views

Setting a static IP address.

I'm trying to set a static IP address in 12.10. When I run ifconfig, I find that both lo and wlan0 have downloaded packets. In my /etc/network/interfaces file it says auto lo. Which should I be ...
1
vote
1answer
1k views

Mobile broadband slow to be detected

-- UPDATE 1: relevant syslog lines. -- UPDATE 2: a step further. I was able to solve the GSM modem enable failed: (32) SIM PIN required loop specifying the PIN in Network manager > Edit ...
10
votes
3answers
7k views

No Network Manager icon in the notification area, so I can't use my VPN connection

I've added a VPN using System > Preferences > Network Connections. However, I can't see how to switch it on, because there's no Network Manager icon in the notification area! nm-applet is running as ...
3
votes
1answer
4k 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. ...
3
votes
1answer
4k views

Why has wireless disappeared after my 12.10 upgrade?

I just upgraded to 12.10 on my Lenovo B570 laptop. NetworkManager isn't displaying a submenu for wireless connections at all, even though I downloaded the update through the wireless connection. This ...
2
votes
1answer
948 views

Internet disconnects by itself and never reconnects unless system restarted

I am using Ubuntu 13.10 and a wireless internet from a modem "Reliance Netconnect" for the internet. I've installed Ubuntu two days back along with my Windows system. So here's a detailed summary of ...
2
votes
3answers
4k views

cannot connect with huawei e173 after upgrade to 12.10 using network manager

Since upgrade from 12.04 to 12.10 I can't connect to internet using mobile broadband modem Huawei e173. It worked earlier without problems and now it seems to be properly recognized (at least its ...
2
votes
3answers
2k views

How can I stop getting disconnected from my enterprise WPA2 wifi network every ~ minutes?

When I'm connected to my school's wifi network, which is an enterprise WPA2 network, using PEAP authentication and MSCHAPv2, I get disconnected every 30 minutes to an hour. It won't reconnect, and the ...
0
votes
2answers
1k views

How to re-compile NM0.9 with enabled wimax?

I found that the new Ubuntu comes with the Network Manager 0.9, but without the enabled wimax support. Please, give some advices how to re-compile it with --enable-wimax features. Thank you.
42
votes
1answer
44k 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 interfaces and work great. However on occasion I need to access ...
7
votes
6answers
6k views

NM-applet's VPN menu disappears

I spend my days hopping between VPN connections in Ubuntu 10.10 and this is becoming severely annoying. What happens is that every once in a while - typically several times a day - when I click on the ...
6
votes
4answers
29k 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. ...
15
votes
1answer
5k 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 MS Windows. I can't remember to have ever succeded in this since using network-manager. Maybe ...
7
votes
4answers
16k views

How to automatically connect to VPN with Network-Manager

I do have a working VPN connection. Now I want this VPN connection to automatically activate when I'm in a certain wireless network. Is there a non-intrusive graphical way using ...
7
votes
3answers
35k views

Network is not working anymore - Ubuntu 12.04

I have a problem with my network connection. I have been using the same laptop with Ubuntu and the same connection for more than a year, and suddenly yesterday the connection stopped working (both ...
6
votes
2answers
6k views

Network Manager, create multiple lan connection configuration for the same wired card

How can I create in Network Manager, multiple wired lan connection configuration for the same wired card? I use to move between a lot of offices where I need to change my network config (IP, Mask, ...