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

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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 ...
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1answer
55 views

Xubuntu - missing checkbox “connect VPN automatically”

I'm trying to make my VPN connect automatically (on startup or when I got disconnected from Wifi) and most of users have a checkbox directly in network-manager. I don't. I thought I have old ...
1
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1answer
11 views

No OpenVPN option in new connection dialogue

I am having an issue in 15.04 with NetworkManager vpn connections. I have openvpn installed, but it does not show up in Unity as an available connection type. john@john-desktop:~$ lsb_release -drc ...
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0answers
13 views

Not detecting specific wireless network in Ubuntu 12.04?

I have Ubuntu 12.04 installed along with windows 8.1. I recently changed the wireless router at my home and following changes occured: Initially Ubuntu didn't detect my wireless network and but once ...
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1answer
15 views

Cannot connect to wired connection after clean install (both 14.02 LTS and 15.04)

I just built a new PC and successfully installed Ubuntu without any errors. However, I cannot seem to connect to a wired ethernet cable. The ethernet works, because I can plug it into a different ...
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3answers
172 views

kubuntu 15.04 wifi problem (lenovo T420)

I have a Lenovo T420 laptop, I have recently upgraded from kubuntu 14.4 to kubuntu 15.04 and since then I have problems with wireless connections, when trying to connect to a wireless network that I ...
0
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2answers
26 views

Can't connect to PPTP VPN server

I'm facing issues when trying to connect to a windows vpn server. On my win 8 I can connect without problem; when I go to my ubuntu I can't connect to the vpn. It is the same desktop, so the same ...
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1answer
19 views

Ask me before switching to a different WiFi network?

Currently in my lab, not all the WiFi APs are working properly. What happens is that my laptop switches to a not working WiFi every now and then. It's very inconvenient. Is it possible to configure ...
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3answers
29 views

Default entry for /etc/network/interfaces

I accidentally removed everything inside my laptop's /etc/network/interfaces file. Now it does not find any WiFi network/SSID I Tried to change to this but it still has problem: auto lo Iface lo ...
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4answers
52k views

How can I use a .ovpn file with Network Manager?

I have a .ovpn file with my VPN config - it works fine when I do sudo openvpn --config ~jrg/Documents/vpn-config.ovpn in the terminal, but I'd like to use Network Manager. How can I do this?
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1answer
31k views

connect: Network is unreachable? - ping

When I attempt to ping google's dns or any outside the network I get connect: Network is unreachable? I can't update either which I put down to this I am new to networking... And Ubuntu. But these ...
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0answers
15 views

Gnome network settings - no connections tab

In ubuntu system>network the dialogue shows only General,DNS and Hosts. There is no Connections tab. How can I fix this?
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2answers
55 views

Network (LAN) stops working randomly - reconnecting helps

I randomly have the problem on my 15.04 that the Internet connection via LAN stops working. This often happens directly after boot, but sometimes also just in the middle of a surfing session without ...
1
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1answer
21 views

Two browsers, two internet connections, eth0 and wlan0

I would like to use both eth0 and wlan0 at the same time in different browsers.(say eth0 for Firefox and wlan0 for Chrome). Requests to eth0 should be governed by a proxy server and the wlan0 should ...
0
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0answers
36 views

Problem with network-manager. How to clean things up?

It is about a couple of weeks that my network manager it is very annoying to me. What happens is that it tries to connect to a known Wi-Fi network (no matter if with or without authentication) but it ...
2
votes
1answer
3k views

How to install TP-Link MA180 on Ubuntu

I just bought the 3G Modem TP-Link MA180 and I try to install it on Ubuntu 12.10. Problem : Network Manager does not detect it. I saw on the web that usb-modeswith is supposed to handle it, but I ...
4
votes
1answer
8k views

How do I get a rt2800usb wireless device working?

My brand new desktop running 13.04 has endless problems with wireless. Dozens of others are flooding forums with reports of the same problems. It worked fine for a few days, then there were a few ...
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0answers
15 views

Connecting to a VPN only works from the login screen

I setup a new connection through network manager to my work's pptp VPN. When I'm logged into my account, when I select the VPN connection from the network manager applet it does nothing. The error I ...
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1answer
4k views

Network Manager missing after update: no connectivity

After an update and restart, I found that the network icon on the top is missing and so, I cannot connect to LAN, wifi, USB modem, nothing. Now, I am booting from a Live USB, then chrooted to my ...
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2answers
1k views

DSL connection problem after installing Ubuntu 15.04

I have just installed Ubuntu 15.04. I tried to connect with my broadband DSL connection. When I entered the cable it was showing that it could recognize the cable. Then from edit connection I added a ...
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1answer
37 views

ubuntu wireless connected but wont load websites - 14.04 LTS x64

I'm a beginner when it comes to linux and i've already read through and tried out everything i have found in countless other threads. So keep in mind that i might have made more problems for myself. ...
0
votes
1answer
78 views

Ubuntu hotspot unstable and unable to connect to it from android 4.4.4 cyanogen mod

okay im using kde nm connection editor for the trick yesterday it worked but today after i booted up and started it it ran well but when i try to connect to it from my device the thing i see is ...
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0answers
10 views

Can't connect to 802.1x Wifi, constantly asks for authentication

When I arrived at work last week my laptop suddenly kept getting asking for authentication to connect to the 802.1x WiFi. All other WiFi networks work fine. My other devices also connect to the 802.1x ...
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0answers
40 views

TCP retransmission to one server, only on ubuntu

Here is the situation: We have couple of computers in office but only two of them have issues connecting to our company website. Both runs ubuntu. It's always like this: I can connect to website 3-4 ...
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2answers
4k views

How to save VPN passwords with NetworkManger for nmcli?

There are many posts about putting VPN passwords into /etc/NetworkManager/system-connections/<connection>. I can't get any of them working on Ubuntu 12.04. The fields in the questions and ...
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2answers
151 views

Connect button grayed out in 802.1x authentication dialog

Since I upgraded to 15.04 I can't connect to our office wired network anymore since I can't press connect in the authentication dialog.
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0answers
21 views

wireless connection asking password for every connection fail

My system knows the password for a wireless ssid, and it is connected too. but whenever the wireless connection is disconnected it should always try connect to it, but after three or 4 attempts it is ...
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0answers
12 views

Network Start error

I use Ubuntu 14.10 desktop X64 and when I switch from single usermode to init3 mode I face no network connection so i use the command NetworkManger to start it but I get this error ...
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3answers
4k views

Huawei E303C Problem / Problema con Modem Huawei E303C

TRANSLATED: I am really a new Ubuntu user, but for some time ago, I have tried Xubuntu and I liked it. Because of this I went a little further to Ubuntu. Right now, I am having this problem. I use ...
0
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1answer
284 views

What is Network-manager trying to do with rdisc?

I have quite strict firewall setup using (g)ufw, allowing only some known to be useful outgoing traffic and denying the rest. I have noticed these recurring messages in syslog, and I'm wondering what ...
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0answers
19 views

Enable eth0 without plugging cable to connect to virtualbox bridge

I'm using Ubuntu 15.04 with NetworkManager. I have internet connection on wlan0(dhcp, 192.168.1.0/24) and static ip on eth0(local network, 192.168.124.1/24). On my virtual machine in VirtualBox i ...
19
votes
4answers
24k 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 ...
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0answers
20 views

Duplicated wpa_supplicant after upgrade to 15.04?

I've noticed a weird behaviour after upgrading to Ubuntu 15.04. It seems like there are two devices connecting to my home WiFi network - and when a "wrong" one connects, the "real" one cannot connect ...
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2answers
47 views

Minimal Display Manager sought

After getting a 3G modem for my laptop, I've started using Network Manager to manage my connections, and I quite like it. However, it is slightly annoying to have to be root to make any changes, ...
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0answers
22 views

Why does connecting to a WiFi network fix DNS settings on another network interface?

I use EasyTether for USB tether to my MBA running Ubuntu 15.04. The steps to do this used to be: easytether connect sudo dhclient easytether0 At some point (probably after the upgrade to 15.04, ...
0
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1answer
17 views

Separate Ethernet card from Network Manager's management

I have Network Manager on my 14.04 laptop. It currently manages the networking. Unfortunately, I don't want Network Manager to manage the Ethernet card, eth0, and I just want it to handle the ...
0
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0answers
17 views

Why does my eth0 interface always shows the same inet addr in different LAN

Problem in my Ubuntu 14.04 is eth0 interface always shows the same inet address regardless of network in which I am and the name of the interface has also changed from eth0 to eth1 due to some unknown ...
3
votes
2answers
3k views

Why Network Manager Can't Detect My ZTE USB 3G Modem!

I am using ubuntu 12.10. I use a ZTE USB 3G Modem to connect to internet. I connect that modem through a driver software which was provided with the modem. This modem works fine. I can browse , use ...
2
votes
0answers
650 views

Error: “The system network services are not compatible with this version.”

I've been using Ubuntu 14.04 since 3-4 weeks now, and I suddenly encountered this error upon starting my computer today. It should be noted that the internet works, but I am unable to see the Wifi ...
2
votes
4answers
5k views

Tata Photon Plus not working in Ubuntu 12.04 though configured and was running once upon a time.

I have installed Ubuntu 12.04 few months back. My modem, Tata Photon Plus got connected after a number of unsuccessful trials and I browsed the net successfully. But since a month, it is not getting ...
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0answers
58 views

Can't get ethernet connection to work with 'Intel Corporation 82579LM Gigabit Network Connection (rev 04)' on Ubuntu 15.04

I am trying to get ethernet connection to work on a hp compaq 8200 elite sff computer, but with no success so far. When i plug in an ethernet cable, the network icon starts the searching animation, ...
0
votes
1answer
43 views

set static ip problem

I've tried to set this right for some hours, but when I restart service networking, I don't have any ip address at all. My /etc/network/interfaces look like this: auto lo iface lo inet loopback ...
4
votes
2answers
256 views

How to know what DNS am I using in Ubuntu 14.04

(A follow up to similar question for 12.04.) Prior to Ubuntu 12.04, you may see the active DNS in /etc/resolve.conf. In Ubuntu 12.04, NetworkManager no longer works with the file. You have to ...
0
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1answer
193 views

Can't connect to my dsl connection in ubuntu 15.04

After the recent upgrade, when I tried to connect to my dsl, it shows like this.. Connection activation failed. (1) Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/5' ...
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2answers
47 views

How to reset Network Manager to default?

This is what I have in my network menu. I've tried many workarounds from deleting entries to all that. Can you suggest any solutions?
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0answers
16 views

Nagios is not showing maps and hosts in web interface

After performing a system reboot, Nagios is not displaying hosts and maps options in the nagios web console. How can this be resolved?
10
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7answers
10k views

How can I make NetworkManager ignore my wireless card?

I do not want NetworkManager to list or manipulate my wireless card. Can I hide its interface from NetworkManager somehow? I have tried adding this in /etc/network/interfaces, iface wlan0 inet ...
1
vote
1answer
77 views

Network manager core dump 15.04

I am trying to get someone to respond to this question: Ubuntu 15.04 reboots by itself But in the meantime I get this on Uuntu 15.04 nm-applet (nm-applet:4109): nm-applet-WARNING **: Cannot grab ...
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vote
1answer
3k views

Getting HUAWEI Mobile Broadband E173 to work in Ubuntu 13.10

I'm trying to get a/an Huawei E173 Mobile Broadband USB device to work with the Network Manager components in the GUI (Ubuntu 13.10). I'm having no luck, but I can get it working successfully using ...
3
votes
1answer
5k views

Reset network configuration in ubuntu 12.04

My DSL internet did not connect by network-manager! So I tried to use sudo pppoeconf and my laptop connect to internet successfully. After that my problems are started! First of all network-manager ...