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

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hosts-files and/or dnsmasq does not work properly or is it?

What is my problem? If I PING facebook.com (127.0.0.1) 56(84) bytes of data. but if I PING oglaf.com (208.113.148.140) 56(84) bytes of data. 64 bytes from ps1646.dreamhost.com ...
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12 views

ubuntu have both ipv4 and ipv6 address but have no access to internet

I have both ipv4 and ipv6 address as below(by ifconfig) but cannot connect to internet (the wlan has only ipv6 address). eth0 Link encap:Ethernet HWaddr 54:ee:75:33:10:12 inet ...
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6 views

Xubuntu 14.04 - How to change wifi node without rebooting?

I need to change from one wifi network to another (both mine) at least once per day. All of my computers (3 x Android, 2 x Lubuntu netbooks, 1 x desktop) switch automatically when I turn one wifi ...
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0answers
13 views

Observium Web Interface not working

I have recently installed observium on Linux Ubuntu 15.10 running on a virtual machine (Vmware workstation 11) While polling a device using terminal (./poller -h all) it works just fine but when I ...
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27 views

No network connection after restart Ubuntu 14.04

After performing the command sudo dpkg -i libnl-*.deb and restart the network manager, everything went well, both LAN and WLAN connections worked. But after restarting Ubuntu, same problem, no ...
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1answer
29 views

Unable to change file attributes (e.g. immutable) on /etc/resolv.conf

I noticed that the network manager frequently changed my DNS server, so I wanted to set the immutable bit on the /etc/resolv.conf file, which didn't work. I noticed that the /etc/resolv.conf file is ...
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15 views

Eduroam Connects but there is no Internet

So my problem is the following: I'm able to connect to Eduroam in my university (Radboud in the Netherlands) but I have no internet what so ever and I don't get ping replies from anything else besides ...
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12 views

Can I share file on adhoc network?

I've installed vsftpd and samba after that I created an adhoc connectivity on the Ubuntu. Then i got 10.42.0.1 as the host IP. I connect my mac to the Ubuntu adhoc. And when I open ftp://10.42.0.1 ...
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1answer
22 views

Network Manager always starts disconnected

For some reason, my new Ubuntu 14.04 Desktop machine always starts disconnected from the network. I'm quite sure I did something to the Network Manager when putting it on a static IP address. ...
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1answer
35 views

eth0 not in /etc/network/interfaces [duplicate]

I'm using Ubuntu 14.04 and my ethernet (eth0) connection is working fine. (with DHCP) However, when I read the /etc/network/interfaces, there is nothing about eth0 in it. Is Ubuntu 14.04 reading ...
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22 views

14.04 Wifi doesn't turn back on after sleep

Related questions have been asked quite often, but the solutions mentioned in those questions don't seem to solve my problem. This quesion seems to be on the right track and I use it as a general ...
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27 views

Intel 7260 - Mint 17.3 - Thinkpad T540p [closed]

not sure what is going on here - but please, would you be so kind as to see the wireless script output. ########## wireless info START ########## Report from: 09 Feb 2016 15:56 SAST +0200 Booted ...
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31 views

ubuntu 14.04: cannot connect to WiFi using TLS and WPA2 Enterprise with certificate

After the latest updates to my Ubuntu 14.04 I can no longer connect to corporate WiFi using TLS and WPA2 Enterprise with certificate. I did some research, and this bug (for Ubuntu 15.04) is the ...
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1answer
17 views

Remove entries from network drop down menu 14.04

When I click the little wifi icon in the top right of my screen, I can see: 4 identical entries for "New Mobile Broadband (GSM) connection..." 2 identical entries for "iPhone Network" ashlee's ...
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0answers
17 views

Network is not compatible with Ubuntu 14.04 in HP G6 2236TX

My laptop's network connection is not working after an update in 14.04. Also, no indication is displayed in the desktop. Can anyone please give the suggestion to fix this.
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28 views

How to restart all network services?

Occasionally when waking up my laptop, I need to run: sudo service network-manager restart In order for wifi to work. However sometimes I have to restart completely, so there has to be some other ...
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29 views

Ubuntu MATE 15.10 no network connection when coupled with OpenVPN

Good morning everyone, Apologies if this has been asked before - to my best understanding knowledge and research, there is nothing that answers this issue... that I can understand with my limited ...
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1answer
22 views

open vpn gone after command in Private Tunnel faq

i was making new connection with openvpn by documents on privatetunnel.com and at the end of docs i enter this command in terminal and after that openvpn in broken. i remove open vpn with apt-get ...
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27 views

Unable to start network manager at boot time

Each time when i boot up Ubuntu network manager icon disappear. I have to manually start network manager. I also tried to modify /etc/network/interfaces but no result.
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2answers
67 views

No ethernet on Ubuntu 14.04 LTS

My ethernet has stopped working, leaving me with wireless only: This seems to be a common problem but I have yet to find a fix. Standard diagnostics $ ifconfig -a eth0 Link encap:Ethernet ...
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0answers
28 views

Network is not connected

After updating some data my system is not shown the Wifi option any more and it does not detect the network if I insert the wired cable. I already tried these attempts: ...
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0answers
30 views

No internet connection on ubuntu 14.04.3 lts after update

I'm using ubuntu 14.04 lts and by mistake I restarted my machine during update installation, The machine now working without any internet connection I tried to download network .deb package and re ...
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2answers
56 views

The system network services are not compatible with this version Ubuntu 14.04 problem to degradate libnl

After command: sudo dpkg -i lib*.deb For files: libnl-route-3-200_3.2.21-1_amd64.deb libnl-genl-3-200_3.2.21-1_amd64.deb libnl-3-200-dbg_3.2.21-1_amd64.deb I had a problem: dpkg: error ...
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20 views

Unable to create hotspot in ubuntu 15.04 [duplicate]

My laptop is having Broadcom BCM43142. I used KDE connection editor for adding info like ssid, password and other hotspot related stuff. But now when I try to start the hotspot by using create new ...
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11 views

Restricting the Number of IP/TCP Connection Request Per Second Using Ubuntu Sever

I know what type internet connection my machines have and how much CPU/RAM they are using. So Is it possible to restrict the accepting number of IP/TCP connections per second at the OS level, before ...
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2answers
84 views

Ubuntu 14.04 Unable to connect to internet

All of a sudden, I am unable to connect to ethernet... the network manager icon doesn't appear anymore It used to work perfectly and the ethernet cable is working with another PC. Here is what I get ...
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11 views

Possible to let network-manager indicator display status of bridged network?

For my VM, I set up bridged networking by modifying /etc/networks/interface as below: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback auto eno1 iface eno1 inet ...
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13 views

Edit wired connections: IPv4 settings: Manual: Routes button

There is a "Routes" button in my Ubuntu 12.04LTS here: Edit Connections>Wired>Edit>Ipv4 Settings>Manual>Routes button Inside the Routes button I can add IP address, Netmask, Gateway, etc. I wonder ...
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64 views

Can't access internet even though the computer is connected to an ethernet

I have dual-booted Windows 7 and Ubuntu 14.04 LTS. In the early phase my wired connection used to work in both Windows and Ubuntu. But now it is only working correctly on Windows. On Ubuntu there are ...
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0answers
34 views

My pc lost the capability of use the network

I started my laptop this morning and I found lost the WiFi icon in the top bar, the I started to look around and I went to settings/network and I get a message saying The system network services are ...
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0answers
6 views

Xubuntu 14.0.3 lost all network connectivity [duplicate]

I'm running Xubuntu 14.04.3 on a Lenovo G50-70 updated earlier today, but I don't think any updates to the Kernel. I shut the laptop down, and had to leave for a wile. When I turned the unit back ...
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1answer
43 views

Wired connection (eth0) is working but network manager icon shows no network

After updating my network-manager, my wired connection continued to work, but it shows no notification; the double arrow is also missing, and the network manager just shows that "no connection" icon. ...
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2answers
48 views

Re-Installing Network Manager via Live USB?

I don't know what happened, but when I got back from suspend, suddenly network manager was deleted on my ubuntu 14.04. So, looks like it needs a reinstall, however, I don't have the packages saved ...
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1answer
21 views

How to select frequency band with dualband wifi adapter?

I just had my 8812au dual band wifi adapter (TP-Link AC1200) working under by Kubuntu 14.04.03. I can see it's listening to both 2.4GHz and 5GHz frequency bands: [Uqbar@Feynman ~] iwlist wlan0 freq ...
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16 views

Network manager randomly crashed

It was connecting fine a couple hours ago and other devices on the network connecting. After the first reboot there was a notification that the network manager has crashed but other than that has been ...
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30 views

Create WIFI access point in 14.04 with bridge mode

Currently i am creating wifi access point using Unity’s default Network Manager IPV4 settings Shared to other computer and finally edited the file /etc/NetworkManager/system-connections/wifi-hotspot ...
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39 views

Cannot connect to internet at all. eth0 and wlan0 disappeared [duplicate]

I kept my laptop on updates but forgot to turn on the charger and it shut down. Now when I started it I realised that the networking icon has disappeared and there is no way to turn it on.I tried: ...
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1answer
152 views

Ubuntu 14.04 Network Manager is not available after Sw-Update [duplicate]

After running a regular Sw-update this morning, and restarting my Lenovo T430-based Ubuntu 14.04, the Network Icon on my Gnome2-panel is all grey and on left-clicking on it, it says: NetworkManager is ...
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43 views

Ubuntu 14.04 takes too long to connect to wifi after wake up from suspend

It takes approximately 45 seconds to connect to wifi after suspend. I searched internet for solution and found this: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/274405/comments/74 ...
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1answer
117 views

NetworkManager error

I do not know specifications of this error. All I know is about usr/sbin/NetworkManager I do not have internet, any network or applet. What can I do to give you mor information of solve this? ...
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3answers
345 views

“The system network services are not compatible with this version” - ubuntu 14.04 [duplicate]

"The system network services are not compatible with this version" - ubuntu 14.04... I didn't even update anything thing.I have everything in network manager ....and I'm unable to connect to any ...
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1answer
31 views

Ubuntu 14.04 LTS not recognizing my wifi router

I am new to Ubuntu,in Wifi-networks I am able to see the routers of my neighbors,and some of them in near vicinity but it don't recognizes my WIFI router,I tried connecting it by clicking Connect to ...
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1answer
25 views

internet works only on recovery mode after network recover

Every thing was working well, but suddenly internet stopped working on my laptop. When i log in using recovery mode the internet works but on normal boot internet does not work...
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0answers
29 views

Manually connecting to WiFI network using iw results in disconnect

I want to manually connect to a Wifi network using either iw or iwconfig. I have tried both. My laptop is running Ubuntu 14.04 with network manager normally managing my wired and wireless networks. I ...
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27 views

network-manager don't work after installed MTP

I got problems with network connection after installing MTP by this tutorial: How to connect Android device using MTP Ubuntu - Tutorial I've read many posts on forums and several from here, but no ...
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1answer
353 views

Network disabled after update kernel to 3.13.0-77-generic on ubuntu 14.04.1 [duplicate]

my network are disabled after update kernel to 3.13.0-77-generic on ubuntu 14.04.1 (Voyager Live 14.04.1 amd64). After update and reboot Wifi indicator on panel is disappeared and conky on desktop ...
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38 views

no internet icon in system tray

all, After update, I cannot see the network icon my system tray. Also I cannot connect to wifi. I cannot use cable unless I run sudo dhclient eth0. I searched online and tried a lot of methods. but ...
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2answers
70 views

WiFi Problem in Ubuntu 14.04

The Problem: I have a dual boot setup with Windows 7 and Ubuntu 14.04. Everything was working fine until yesterday morning after login I couldn't get the wifi in ubuntu stopped to work (see details ...
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0answers
30 views

No network connection after update - Ubuntu 14.04 [duplicate]

After the automatic update of some packages on Friday and a subsequent reboot, my computer does not connect to the internet anymore. Also, the "Network" icon disappeared. I am using Ubuntu 14.04. ...
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0answers
77 views

Network disabled on boot

Im running LXLE 14.04 (lubuntu based) dual boot with Windows 8.1 Recently I installed 3.13.0-77-generic headers and everything was fine until I did a reboot and chose 3.13.0-65-generic. My network ...