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

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Replicate Network Interfaces with Network Manager

I would like to replicate this segment from my /etc/network/interfaces Xen installation with the Network Manager GUI and NOT bridge-utils: auto lo iface lo inet loopback auto eth0 ...
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20 views

while run the nm-applet command in ubuntu 14.04 get error.Pls help to resolve

while run the nm-applet command in ubuntu 14.04 get error.Pls help. (nm-applet:2990): nm-applet-WARNING **: Failed to initialize D-Bus: Did not receive a reply. Possible causes include: the remote ...
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25 views

Ubuntu 15.04 keeps disconnecting

I had previously posted this question here, but it was closed due to 14.10 being EOL. I have made the upgrade to 15.04. Every so often, my wifi will disconnect. I have posted the output of "lshw -C ...
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21 views

L2TP/IPSec VPN Connection

On OS X, there's an option for L2TP/IPSec VPN in network connections where it lets you enter an IP Address, Username, Password, and Shared Secret. I downloaded Strongswan in Ubuntu, but do not see ...
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1answer
19 views

automatically select between wired and wireless networks [on hold]

I am using ubuntu 10.04 LTS. I have two interfaces: one is wired and the other is wireless. When the two interfaces are up, ubuntu priorly select the wired to access internet. However, when the wired ...
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1answer
29 views

wired network connection in xubuntu not working with r8169

I am working on a brand new laptop with xubuntu 15.04. Wireless is working ok. Wired connection says connected when plugged in, and disconnected after 2 seconds or so. "Enable networking" is ticked. ...
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50 views

Home network Speeds (LAN and Wifi) very slow, Internet download is fast

Good evening, I have a home network hooked up and an ASUS (RT-AC68U) Wireless-AC1900 Dual-Band Gigabit Router with CAT 7 running throughout my whole house. My server is wired, Windows 10 machine is ...
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12 views

How does network manager identify a connection over usb0?

Here's a thing I'm trying to solve: I have a PC running Ubuntu 14.04 and an ARM board running some Linux. I want to have RNDIS-ethernet-over-USB connection between the two, and I want network manager ...
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2answers
53 views

DNS is not working, /etc/resolv.conf is not overwritten. Why?

I have this configuration in my server in the Network Manager connection: /etc/NetworkManager/system-connections/wired-connection [connection] id=wired-connection uuid=0c501f08acc5497cb7... ...
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9 views

Ubuntu 12.10 Hotspot support WEP / WPA

I'm following this tutorial : http://ubuntuhandbook.org/index.php/2014/06/share-internet-with-android-ubuntu-1404/ and I've managed to get my hotspot running (sharing ethernet over wireless). ...
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1answer
53 views

Is the file '/etc/network/interfaces' ignored when I use the Network Manager?

I had this configuration in a server /etc/network/interfaces auto em1 iface em1 inet static address 192.168.1.250 network 192.168.1.0 netmask 255.255.255.0 broadcast 192.168.1.255 ...
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19 views

Internet Connection not being picked up

My dad has ubuntu installed on his PC, and up to now we haven't had any issues with it. However a couple of days ago it auto-updated to a new version of ubuntu. Looking at the details in settings, it ...
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9 views

Modem 4G (HiLink) + network-manager

How establish a connection (internet) with this type of modem (HiLink) and network-manager? Doesn't matter how I try modem disconnects after few seconds. ł.o.
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1answer
31 views

wlan0 is missing

My laptop wlan0 missing after apt-get upgrade. It works well before. ifconfig only lists lo and eth0 now. iwconfig give no wireless extension error. $ iwconfig lo no wireless extensions. eth0 ...
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1answer
37 views

Can't connect to WiFi with “Connection activation failed” error after upgrade from 14.04 -> 15.04

I recently upgraded from 14.04 to 14.10 to 15.04 in succession. I lost internet capabilities each time, thanks to my having to use a Realtek WiFi dongle. I was able to resolve those issues both ...
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27 views

Wifi stopped working after resume or reboot Ubuntu 14.04

I have a dell vostro laptop with Ubuntu 14.04 dual boot with windows (wifi is working with windows). The wifi stopped working after resume/reboot. Wifi is unable to detect any networks. PFB the ...
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1answer
16 views

How to keep alive a wifi connection on a laptop

I have a Dell Mini 9 running Ubuntu 14. The wifi seems to work well, but only as long as I use it. I've noticed that if I leave it idle, and then try to ping or SSH into it, it's disconnected from the ...
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12 views

New and Inexperienced: Wifi networks not being detected suddenly

I know very little about Ubuntu or programming, or really anything, but I'm helping a friend get a stable OS on his computer since some jerk nuked his entire hard drive, OS and all (me). For a while ...
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37 views

Cisco VPN not connecting: no ifupdown configuration found

I am trying to connect to a Cisco VPN network using network-manager and vpnc. Until one week ago everything was working fine. Now suddenly the connection fails. The Log: Jul 25 21:09:12 ...
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5answers
891 views

I accidentally deleted the network-manager and don't have access to internet anymore

I cannot connect to any wifi connection since I deleted the network-manager. Is there any way to get it from another computer and then install it on mine or is there a way I can get an internet ...
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1answer
60 views

Ubuntu 14.04 detects Vodafone 3g dongle, but fails to connect

Earlier I used Ubuntu 12.04 where my Vodafone 3G Dongle (HUWAEI modem) used to connect seamlessly via network manager Mobile Broadband. Now I have upgraded my system and using Ubuntu 14.04, but ...
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1answer
29 views

DNS issues with Cisco VPN (vpnc) on 15.04

I'm having issues with DNS resolution of on-network servers. I can get them directly via IP address, however DNS lookup fails. Notes: I configured the VPN connection via NetworkManager. The ...
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28 views

dns forwarder dnsmasq not working . . .?

I installed lubuntu 15.04 into a VirtualBOX vm and am using openvpn to connect to PureVPN service. I lose connectivity after an unknown amount of time. Disconnecting the VPN doesn't help. I've ...
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1answer
17 views

How can I reinstall dnsmasq?

I accidentally removed dnsmasq from my computer by running rm /etc/init.d/dnsmasq I was working in root when I did it. I was trying to learn how to stop DHCP and just messed up. (Now I can't ...
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1answer
46 views

“Network error: Connection refused” in Putty when I'm trying to connect to my remote home Ubuntu server

I just set up a linux home server using http://linuxhomeserverguide.com/. I can connect to it from my desktop PC at home via putty using a local ip like 192.168.1.2 (just an example ip), but I want to ...
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23 views

Make specific network interface only for specific ip range

I have two network interfaces, one (eth0) is just simple gigabit ethernet which is the main connection of my computer (Ubuntu 14.04 LTS), however I have another - Apple usb-tethering connection (eth1) ...
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1answer
42 views

networking disabled, cant re-enable

For some reason I seem to get disconnected from my wifi as noted by the nm-applet going to the disconnected icon. When I hover the mouse it says networking disabled. When I click on enable networking, ...
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1answer
25 views

Why is the state of my NetworkManager changed when I unplug my iphone 4s?

Ubuntu 12.04. iPhone 4s, iOS 7.0 I never noticed that a mobile device could activate/deactivate the Network status of my computer, kind of a surprise .. So what's the point of this network change? ...
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52 views

unable to connect to pptp vpn [closed]

Why won't this connect to my VPN? It's a fresh install of Lubuntu 15.04, with network-manager, network-manager-pptp, pptp-linux, network-manager-pptp-gnome added. I have mimicked the setup from ...
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26 views

Network conn problem when wifi and ethernet are active

I have ubuntu 15.04 64 bit , when the laptop is connected to the house's network using Wifi and ethernet at the same time I don't get network connection . But each one works alone . How can i get ...
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15 views

Has anybody got a fix for Wireless Network Authentication removal of connect button functionality? Denial of Service

I really needs some help urgently here folks as we are without internet that can only realistically be achieve wirelessly due to cable impossibilities. Something happened this evening whereupon both ...
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1answer
14 views

Networking indicator missing in Ubuntu 14.04

Networking indicator missing in Ubuntu 14.04 When I update my system and then restart, my system network indicator is not shown in unity panel. I try to edit: Exec=dbus-launch nm-applet in ...
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125 views

IPSEC/L2TP Ubuntu Studio 14.04 (Strongswan)

My first question: Does Ubuntu support IPSEC/L2TP/PSK vpn CLIENT? My Second Question: Is there a front end "Network Manager" that supports IPSEC/L2TP and PSK? Background: In my endeavors I came ...
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118 views

How to configure IPSec VPN on Ubuntu 15.04

In order to connect to the VPN I only need a few configuration options: server.domain.name PSK user pass What is the proper way to configure an IPSec VPN connection on my Ubuntu 15.04? I installed ...
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35 views

Wifi keeps disconnecting in Ubuntu 14.04 LTS

I have a Lenovo Y-5070 Gaming Laptop which I purchased in December 2014. I have dual booted my laptop, Windows 8.1 alongside Ubuntu 14.04LTS. It came pre installed with Windows 8.1, but for project ...
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17 views

Create openvpn connection without saving Password

I'm trying to setup an openvpn connection to our production environment using networkmanager-openvpn on ubuntu 14.04. Yes, I know how to do it using sudo openvpn ...conf.openvpn. That's not what this ...
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12 views

Does not shown the network manager indicator and does not get DHCP IP from server? [duplicate]

I was working in Ubuntu 12.04. In that the network manager does not get IP address from server also the network manager icon missing. The nm-applet also missing. Can anyone suggest me how to solve ...
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2answers
55 views

Network Manager (as well as wicd) don't connect to Wifi

I experience an error on Ubuntu 14.04 Trusty Thar with my Wi-Fi. After installing Ubuntu some months ago, I did not have any problems. Just recently I followed this guide on what one should do after ...
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1answer
83 views

Obtaining automatic IP with network-manager fails, but static works with wicd

Update I've connected to my home router with wicd and a static IP. Thus, the problem seems to be that my laptop cannot get an IP address automatically. Hence, the main question now is: How can I get ...
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33 views

gnome keyring problem and/or network manager does not store passphrase in keyring

So on very new wifi connection, network-manager stores the passphrase in its file in /etc/NetworkManager/system-connections directory instead of the gnome keyring. Either if I choose to store it for ...
2
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0answers
72 views

Wifi stops working randomly after a while on ubuntu 14.04LTS

I shifted from windows to ubuntu for first time on HP r-15 laptop and dual booted ubuntu 14.04 LTS with windows 8.1.But i am having problem with wifi.I can connect to wifi without any problem but ...
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19 views

Ubuntu 14.04 Server - Networking Disabled upon Reboot

I am a brand new user to ubuntu, so bear with me through this. I recently installed ubuntu 14.04 server on an old laptop to use as a media server. Installation went fine, upon rebooting though both ...
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29 views

System network services not compatible

There are several other older posts regarding this issue but suggested workarounds (most not fixes) are not resolving for me. I started with v12.04 and had the issue. I WAS able to access the ...
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22 views

nm-applet not working in gnome3

I have a problem while installing a new Ubuntu virtual machine running Gnome3. I would like to be able to change network profiles quickly - wired and wireless. In order to do that, I would like to ...
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21 views

List of available networks disappears after 15 seconds Lubuntu 14.04

When I boot lubuntu 14.04, running on my Dell 11 chromebook, if I click on the network manager applet in the panel it lists the 8 or so networks in range. After roughly 15 seconds, all the networks ...
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25 views

How can I require 2.4G band when both 2.4G and 5G are available from an AP?

I have a dual-band WIFI adapter (Intel 7260) on my Linux laptop. The target access point supports both 2.4 GHz and 5 GHz. When I use the GUI interface to connect to that AP, it always connects to the ...
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13 views

ubuntu won't find router ssid/signal

I am using ubuntu 15 & I got several modems and can connect to all of them except for my TRENDnet modem MAC Address D8:EB:97:20:F0:53 it does not show it's signal any more after several weeks of ...
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10 views

Lubuntu crashes after i click on network manager

For whatever reason on lubuntu some reason when I click on the network manager icon my screen sometimes goes black... not sure why, I've tried pressing ctrl alt f1 with no success any ideas?
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42 views

Why do I get IP 10.42.0.1 when plugging in an Ethernet cable?

For a few months I have the problem on my Ubuntu 14.04 box that when I plug in my Ethernet cable into, I get the IP 10.42.0.1 assigned instead of getting an IP via DHCP. I can fix this problem ...
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2answers
79 views

In ubuntu 15.04 ,wired and wireless are not connected after running sudo apt-get purgr network-manager-gnome network manager

I run command sudo apt-get purge network-manager-gnome network-manager. After running that command wireless and wired networks are not connected to my laptop. And when I look into "system ...