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

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Cannot connect to network using a WiFi USB Adapter

This question has been solved. Thank you for all your help. The solution was just to downgrade. Didn't even need to install the OS for it to work, it worked inside the installer. My mother's old ...
51
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2answers
55k 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 interface and work great. However on occasion I need to access this ...
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2answers
14 views

Network manager must be restarted after wakeup in Ubuntu 15.04

Upgraded from Ubuntu 14.04 to 15.04 on my lenovo T410 a couple of weeks ago and I have been having some problems with my network connection ever since. Everything worked fine with 14.04, but now I am ...
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5answers
5k views

Unable to connect to VPN using gnome-network-manager

I originally wanted auto-connect vpn upon login, but after much trial and error and connection issues it looks like my network manager is corrupt. Unity ubuntu 1404 When I try to connect via ...
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1answer
7k 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
8 views

How to connect Dual NICs in same system to each other

OK here is what I want to do, it may seem odd but its part of a piece of test equipment and I'm trying to validate that both Ethernet connections work on the same system. I have a system (many ...
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0answers
776 views

Driver r8169 of Realtek

Somebody knows what happened with driver r8169 of Realtek? Internet connection works well in Windows Vista Ultimate. However on Ubuntu 14.04, it did not work. It does not recognize wired connection. ...
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1answer
3k 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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4answers
29k views

How can I troubleshoot “VPN Connection Failed”?

Is there anyway to get an error log for a failed VPN connection attempt? All I get is this notification and I have no idea where to go from there:
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1answer
38 views

DNS Issue in ubuntu 14.04

I am facing DNS resolving issue sometimes in my Ubuntu 14.04.2 LTS trusty. I have configured my system with network manager to work with static IP assignment. I have also tried by changing DNS server ...
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2answers
66 views

multiple Ip's bind on same port

I run multiple game servers so i added my additional ip's to the server. I made sure that the game servers ip are different but I still cant start the others server cause the ports are conflicting. $ ...
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2answers
7k views

How can I add the Network Manager Applet to the panel after removing?

In rearranging the panel, I removed the Network Manager Applet. I tried to add it back, but it doesn't show up in the list (Add To Panel). I can start it up and see it as a running process ...
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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 ...
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1answer
61 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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2answers
1k views

Intermittent wired network issues in 14.04

Since yesterday, my wired network connection has been dropping for a couple of seconds every 30 seconds or so. To my knowledge, I had not made any changes to my network. Output of ifconfig -a: ➜ ~ ...
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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 ...
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1answer
36 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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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 ...
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1answer
1k views

cannot connect using L2TP IPsec VPN Manager 1.0.9 on Ubuntu Desktop 14.04

used Synaptic to install L2TP have checked the dependencies are installed too. but cannot connect to work VPN when i click connect Ubuntu reports error 410 $> sudo ipsec verify Checking your system ...
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1answer
1k views

nm-applet (network-manager) can't find security agent

Under Ubunutu 14.04, when trying to connect to an openvpn server via nm-applet I get the response in /var/log/syslog NetworkManager[3590]: <error> [1412801125.247964] [nm-vpn-connection.c:1374] ...
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1answer
53 views

changing the priority of network interface

I want my ppp0 connection to have higher priority over wlan0. I added following lines to /etc/network/interfaces file. iface wlan0 inet dhcp up ifmetric wlan0 20 ...
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0answers
13 views

Proxy VPN settings in Network Manager: for remote or local?

So I am at some place with a normal (direct) internet connection and want to go through a remote network (my work) where I need a proxy to access the internet. Thus, I need to configure also a proxy ...
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0answers
24 views

Cannot connect to VPN ubuntu 14.04

I'm using hide.me I followed the tutorial, but I cannot connect to the vpn. It shows up in the menu, but I cannot select it, it just does nothing. I think it should be common sense to allow for an ...
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0answers
24 views

Network manager conflict at startup in Xubuntu 15.04

In previous versions of Xubuntu I haven't had this particular problem but what happens is that the Network Manager appears sometimes after startup and some other times it doesn't show up. Also I ...
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1answer
267 views

Move wireless passwords to another computer

I am going to reinstall Ubuntu soon and want to move my wireless passwords I have to the new installation. What do I need to backup to put on the new installation?
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1answer
40 views

NetworkManager does not start automatically

I used this QUESTION to configure the default of Ubuntu 14.10 to start in RUNLEVEL 1 but when I switch to another RUNLEVEL (2,3,or 5) , there is no network connection and I have to start the ...
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3answers
23k 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 ...
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2answers
67 views

Unable to connect to the internet on a ubuntu 14.0.4 laptop using zte(reliance cdma) AC2739 usb modem‏

many linux/ubuntu users face this problem -->(connect to internet using modem zte/etc.....) because modern dongles have usb storage + modem+cd rom, usb_modesswitch blablabla....................... ...
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1answer
237 views

how to setup split-dns for vpn with network-manager

I want to create a split-DNS config on a 14.04 desktop machine with both a local eth network and a VPN connection. Ie I should send DNS lookups for address ranges that are accessed via the vpn to the ...
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2answers
2k views

How can I enable bonded network interfaces in Ubuntu 13.04/13.10/14.04 using NetworkManager

This question is about network interface bonding in Ubuntu 12.04 Precise and newer (12.10 Quantal/13.04 Raring/13.10 Saucy/14.04 Trusty). Bonding is also known as network interface teaming, link ...
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2answers
8k 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. ...
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0answers
51 views

How do I connect to an L2TP IPSec VPN using a PSK on 15.04?

I've installed StrongSwan and the network manager helper and I have the options in the applet for VPN, but it only supports certificate configuration, not PSK entry. I've tried to add the PSK into ...
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2answers
3k 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
190 views

nm-applet wifi-issues on Lubuntu 14.04

on my 64bit installation of lubuntu (lxde) nm-applet has been working fine but since my latest installation of several updates (haven't updated for some weeks) it seems something broke and i can't ...
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0answers
20 views

Cannot connect to VPN at all after upgrading my router

I am using UBuntu 15.04 I previously had a TPLink Modem+Router and I was able to flawlessly connect to the VPN on my Ubuntu 15.04 without any issues. Than I upgraded to a DLink 2750u Modem+Router and ...
0
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1answer
25 views

How do you make sure that new hostname is successfully broadcast to the network?

I am trying to reset my hostname, but I am not sure if the broadcast is successful or not, is there a way to check? user:~$ sudo hostname newhostname user:~$ sudo dhclient sudo: unable to resolve ...
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0answers
15 views

Cannot Connect to WPA2 Enterprise on Ubuntu Phone

I wrote a NetworkManager config file by myself and I also tried the one mentioned by Stunts in this post. I put each of them into /etc/NetworkManager/system-connections/ but nothing happens. I ...
3
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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 ...
47
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4answers
100k 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 ...
3
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3answers
16k views

Create WiFi hotspot on ubuntu

Although many questions have already been asked regarding WiFi hotspot, I didn't get any of the solutions working for me. I connect to the Internet using a 3G Dongle of Huawei 3772 (Vodafone). The ...
0
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1answer
37 views

Apartment Network Issue

Ok so I'm trying to SSH into my home machine from work/school. Problem is, even though I set up my router appropriately, I can only ssh into it when I am in my apartment's network (not my own ...
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1answer
30 views

Network Manager VPNC

I am trying to connect to an Xauth Ipsec VPN, I have entered all my relavent infromation and the VPN seems to fail without an error that I can debug. Uses Username/password, Group name and then a ...
3
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2answers
62 views

Network manager applet doesn't show wired network connection

I have the latest installs of network-manager and network-manager-gnome. I installed Ubuntu Server LTS 14.04, then installed Cinnamon on top of that. I have LAN network connection (can browse, etc.). ...
1
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1answer
285 views

Weird network troubles in 14.10

After hours of research I need some help. /: After upgrading from 14.04 to 14.10 I'm seeing the Waiting for network configuration message on boot, even though my /etc/network/interfaces just ...
0
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1answer
28 views

Remove network interface permanently

I'm trying to remove a network interface permanently. For some reason, ifconfig lists eth0 and eth1, although the latter RX/TX metrics remain at zero. I suspect that extra eth1 entry might be causing ...
0
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1answer
40 views

WiFi keeps dropping out but still shows as connected

I installed Ubuntu the day before yesterday and am still having a few teething issues. Every half hour or so my wireless connection just stops, but is still indicated as online. Disconnecting and ...
0
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1answer
34 views

Reset network settings to what Ubuntu installs

The problem is I messed up lots of files (such as networkmanager.conf) and other because my laptop was not connecting to an ad hoc network, it connected to other hotspots like my androids shared ...
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3answers
13k views

OpenVPN GUI client for UDP/TCP

Is there any easy solution for OpenVPN being executed from Desktop for non technician people so they only push a button and get connected to a external VPN? Most of my colleagues are non Linux ...
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0answers
12 views

Network manager can find all but the default network on startup

I recently installed Ubuntu and everything is still vanilla except for i3wm which I am using instead of Unity. When I startup Ubuntu it cannot find the default wireless network that I set during the ...
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1answer
4k 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 ...