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

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Network Manager crash not resolved [duplicate]

I lost my network connection following an upgrade I installed on Friday 13th May (no joke!). This was on both my desktop PC and my Sony laptop, both running on Ubuntu 14.04 LTS. I visited this site: ...
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21 views

No Networks Tab In Menu Bar

There is no networks tab in menu bar and therefore I cannot connect to internet. When I go to System Settings > Network, it gives me this error: "The system network services are not compatible with ...
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1answer
42 views

Network Manager Prompts for VPN Login Password at User Login

I'm running 16.04 with Ethernet connection set to automatically connect to my VPN at start up in Network Manager (NM). However, the NM password window appears at the Ubuntu login screen asking ...
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0answers
52 views

DNS problems in Ubuntu 14.04

My current /etc/resolv.conf looks like this: nameserver 192.168.1.254 nameserver 10.23.0.1 search home My basic problem is that I want to use different nameservers, such as Google's nameservers, ...
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0answers
82 views

Possible bug with new version of ubuntu finding my wifi radio

I think my Ubuntu automatically upgraded (the top line on grub's alternative grub boot page shows "Ubuntu, with linux 3.19.0-59-generic" and the next normal line shows "...-58-generic") and my wifi ...
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1answer
87 views

Problem connecting laptop (Ubuntu 14.04) to WiFi network

Okay, so I recently downloaded Ubuntu and installed it to run alongside Windows 7. When I started Ubuntu, I could not find my WiFi network in the network list. My ISP (Internet Service Provider) is ...
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0answers
29 views

Network Manger doesn't start automatically

The regression in the last network-manager update (may 13, 2016) also affected me. I've managed to fix it by downgrading, but since then every time I turn on or restart the computer, there is no ...
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2answers
326 views

Ubuntu 14.04 — The system network services are not compatible with this version

I have read all related questions but none of those answers worked for me. So the problem is that on my ubuntu 14.04, there isn't network connection and no network icon either. I have used ubuntu over ...
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1answer
112 views

Cannot activate Network Manager

Laptop sat cold for a day, and after a cold boot up I discovered no internet connection, no wireless or network icon in top right icon tray.. no access via ethernet.. nothing! Through terminal, ...
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254 views

WiFi Stopped Working After Updates on 5/13/16 (Xubuntu 14.04.4 LTS)

I used my desktop normally on Friday, but when I booted it up on Saturday (yesterday), there was no WiFi icon in the icon tray and there is now no network connection. I believe I installed some ...
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2answers
132 views

Unable to connect to the internet, Network menu has disappeared

I installed Ubuntu 14.04 LTS on Lenovo Think-pad laptop some months ago. Everything has been working fine until yesterday. Don't know whether something hasn't updated correctly. Very new to Ubuntu and ...
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75 views

On boot network-manager crashes

Since yesterday when I boot I cannot access the Internet and the network-manager applet doesn't appear anymore in the icon bar. When I start the service manually, the following error popup appears: ...
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16 views

ubuntu isc dhcp gives ip only once

My system is a Ubuntu PC with 3 thin clients that are connecting through ltsp to it. There is also a router inside this network so there are 2 DHCP servers inside the network. I've set the IP ranges ...
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1answer
44 views

My Network Notification icon not showing Ubuntu Kylin 14.04

I know this is a question asked a lot,but I have tried almost every solution out there and the network icon is still not showing. I am using Ubuntu Kylin 14.04. I tried to access nm-applet but it ...
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3answers
2k views

network-manager crashes [duplicate]

My networking was working fine yesterday. I shut down, went to bed, and when I booted up this morning it won't even talk to the router; network-manager crashes. I was wondering how to upgrade ...
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1answer
51 views

nmcli dev disconnect iface wlan0 does not work anymore :(

if I do sudo ifconfig wlan0 down, the network interface is turned off, and then turned on immediately (by network-manager, I guess), because it tries to re-connect, nmcli con up down xxx used to work ...
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0answers
30 views

I installed Jupiter and my network manager is gone!

I installed Jupiter, everything was goin' fine 'till y restarted my PC. Once it started my network manager was gone so I had no internet connection (neither wifi or ethernet). I tried everything i ...
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3answers
284 views

Network manager stopped working

I'm running Ubuntu 14.04 and the network manager suddenly stopped working so I can't access the internet. The network manager icon doesn't appear in the bar. When I access the network manager from ...
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0answers
370 views

Network-manager behaving erratically Ubuntu 16.4 Mate

Clean install of Ubuntu Mate 16.4 on a Vizio CT-15 has issues with network manager. Indicator applet will sometimes show the up/down arrows as if it were connected to Ethernet when it is connected to ...
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0answers
35 views

WiFi stopped working after VPN configuration

I installed Ubuntu 16.04 LTS on a MacBook Pro 12,1 the other day and everything worked well out of the box including WiFi. Then I setup VPN from privateinternetaccess.com using their .deb package and ...
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1answer
134 views

How can I restore my broken (appears to be renamed) wired ethernet connection?

Yesterday I lost my internet connection after rebooting my Ubuntu 16.04 installation. Now when Ubuntu boots, it searches for a network for a couple of minutes, then states "Connection established" but ...
28
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4answers
9k 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 ...
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2answers
157 views

Network connection not prompting for password

I'm looking at my syslog and seeing very little in the way of useful information about this, but whenever I try to connect to a wifi or VPN connection, I don't get any prompt for auth but the menu on ...
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0answers
29 views

is a file in /etc/network or in /etc/network-manager misconfigured?

Each time when I want to run sudo apt-get update then the system stucks and only following line appears : 0% [connection with dlink.com (12.130.207.110)] [connection with dlink.com:1024 ...
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0answers
148 views

System boots slow - Ubuntu 16.04

I recently installed ubuntu 16.04 , after the installation seems like it takes more time to boot . On an average it takes 55 seconds to 1 minute . While checking the "dmesg" log I could see it gets ...
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0answers
117 views

blueman vs network manager

Flavor: Lubuntu 16.04 At first: I am aware that there are numerous questions concerning a missing nm-applet icon in a lubuntu/lxde panel, but my case differs and I could not find one of the solutions ...
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0answers
39 views

Route traffic from eth1(local network) to eth0(external network) where ubuntu is dhcp server

I have an ubuntu server which is configured to be DHCP server to give IP address to a cisco switch through eth1. eth0(connected to the external network) ip:10.106.24.182 netmask: 255.255.255.0 ...
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2answers
465 views

16.04 LTS - all wifi connectivity lost when changing wifi networks

After upgrading from 15.10 to 16.04, when I switch wifi networks using the network manager applet, all networking capability is lost. Before selecting the different wifi network, the wifi works ...
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0answers
34 views

Hide unmanaged network interfaces in Ubuntu

On my laptop running Ubuntu 16.04 I have VMware Workstation 12 Pro (legitimately) installed, so there are virtual network interfaces that are unmanaged by network-manager but they still show up in the ...
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1answer
40 views

how to bring linux bridge up at booting time?

I am trying to bring up a linux bridge at the time my ubuntu is booting. The bridge is mapped to eth0 interface. Is there any way?
2
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1answer
2k views

Ubuntu 16.04 LTS How to force all http/https trafic to use proxy?

I'm just switched back to Ubuntu, from Windows. I had a program in windows (Fiddler) wich captured all outgoing traffic and could edit their header to use proxy. Are there any way to force all of my ...
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0answers
8 views

Default route is for the wrong router on same network

This is just plain bizarre, I really am not sure what to make of it. The router situation of the place I'm staying at is as follows: there is a wireless router (router A) that is connected directly ...
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0answers
76 views

Network Interface does not come up automatically

I have a couple of Jetson TK1s and Jetson TX1s running Ubuntu 14.04 (Linux4Tegra). I need to be able to switch between two network configurations - an "office" one where I'm in the office and can ...
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0answers
30 views

Network Manager taking control of interface when restarting

I start my computer without any special configuration in /etc/network/interfaces, so as expected NetworkManager manages my wlan0 interface. Then at somepoint I change the /etc/network/interfaces to ...
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0answers
79 views

Ubuntu NetworkManager version downgrade

I have installed Ubuntu 16.04 LTS. Everything is working fine. But, I cannot connect to the Internet. Our university is using 802.1x - TTLS/PAP authentication. It cannot pass the PAP security phase. ...
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0answers
23 views

Network Problem

I have started Ubuntu 16.04 LTS OS 2days ago along Windows 8.1 OS, initially my broadband was connected and there was no problem with wiered connection but now my wired connection is disconnected and ...
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1answer
90 views

KDE5 Not Connecting to L2TP VPN

KDE is refusing to allow me to connect to the server, saying that org.freedesktop.NetworkManager.l2tp is not installed. Logfile: May 5 11:54:12 BlackHawk NetworkManager[7978]: <info> [...
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0answers
36 views

OpenVPN no valid VPN secrets on 14.04 LTS [duplicate]

I followed below guide: Connect to access server from Ubuntu I tried the first time to get OpenVPN running on Ubuntu 14.04 LTS. I installed network-manager-openvpn-gnome and also network-manager-...
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0answers
51 views

14.04 LTS: Mobile broadband “connected” but network unavailable

As of a software update 2-3 days ago (let's say after May 1 but before May 5), network via broadband doesn't work. Connecting to mobile broadband lights up the correct LEDs on the dongle. ifconfig ...
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0answers
55 views

Networks show “Ethernet Network () Device Not Managed” (Xubuntu)

Could not find this question, so apologies if it is a duplicate. I am running Xubuntu on a Lenovo Yoga 211 as my only OS. I do not have an Ethernet port, and as such have of course never tried to ...
0
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1answer
123 views

connection to wifi network with my asus x205T

I Have installed Ubuntu Linux on my Asus X205T, using an USB WiFi, (everything went ok). In the next step, I tried to install the wifi network driver: wget https://android.googlesource.com/platform/...
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0answers
31 views

Is there any challenge-response IPSec VPN client for Linux?

I've been looking at Network Manager and now looking at StrongSwan. Although StrongSwan seems to support challenge-response, it seems it only does so on the server side. Whereas vpnc/NetworkManager ...
0
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2answers
108 views

Networkmanager does not know that I am online, after resuming from hibernate

The following question is very close to this question. When closing the lid of my notebook or going to hybernate and waking up my Ubuntu Mate 16.04 machine, the nm-applet shows, that I am offline. ...
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0answers
42 views

Only use /etc/network/interfaces for configuring network

I'm comfortable using the classic /etc/network/interfaces, and since I've had bad experiences with Network-Manager in the past, one of the first things I do when installing a new Ubuntu system is to ...
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1answer
69 views

How to release an IP address and renew from the commandline?

I am using modern versions of Ubuntu that use network-manager, and I would like release and renew my network settings through the commandline. In the olden days when Ubuntu used the interfaces file, ...
1
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1answer
86 views

14.04 to 16.04 upgrade ignores NetworkManager.conf

The machine in question was a straight from dvd install of 14.04 (upgraded to date before upgrade to 16.04 on 27-APR-16), with static ip, bind9 and registered domain. /etc/NetworkManager/system-...
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0answers
22 views

How to autoconnect an ad-hoc network?

If I use the network connection editor to create a new wifi ad-hoc network, I can see it on another computer and connect to it. However, the other computer connects automatically if and only the ...
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1answer
1k views

Kubuntu 16.04 network-manager failed to edit connection with crued log

Always I want to edit a network-connection(WiFi, VPN, eth etc.) I get a log-message something like May 2 21:39:19 mylaptop NetworkManager[925]: <info> [1462217959.6967] audit: op="connection-...
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1answer
23 views

Interface's manual configuration problem

I'm building some home lab (Linux & windows) & I have some very basic configuration problems. The problem: Ubuntu 14.04 updated & upgraded (will be a router) I want to configure 3 ...
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1answer
44 views

Configure two network interfaces on Ubuntu 14.04

My computer is running Ubuntu Server 14.04, and is connected to two networks at the same time (i.e., local network A with IP 192.168.1.30, which has access to Internet; and another local network B ...