Questions tagged [network-manager]

NetworkManager is the default networking suite for Ubuntu. It is a set of co-operative tools developed by GNOME. The NetworkManager service can be controlled using the nmcli tool (Network Manager Command Line Interface) as well as by its GUI.

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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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1answer
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Unstable wifi with intel 8260 [8086:24f3] (rev 3a) on Ubuntu 16.04 running on Lenovo P50

On my brand new Lenovo P50 the wifi is unstable. sometimes it connects, sometimes it does not, or just stops working. Sometimes wifi networks are shown in the network manager, sometimes not. Sometimes ...
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2answers
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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_modes switch blablabla....................... ...
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1answer
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Able to access web by ip, but not by dns name

I'd like to post a solution to a problem I've encountered in my university. The issue is closely related to this post. I asked the user whether or not he found a solution but he never responded. In ...
135
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2answers
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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 ...
119
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8answers
321k 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?
36
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9answers
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Cannot log in to public open Wifi connection

As a long time user of Ubuntu (10y+) I have noticed the relationship between Ubuntu and public Wifi hotspots (without wifi security) that require login through a web page have not always been easy... ...
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3answers
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Why nm-tool is no longer available in Ubuntu 15.04?

Why is the nm-tool command line tool not available in Ubuntu 15.04?
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3answers
47k views

How can I disable the DNS that Network Manager uses?

Ubuntu uses a DNSMasq instance for Network Manager starting in 12.04 - how can I disable it?
13
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3answers
35k views

How do I create a non-adhoc wifi hotspot?

I wanted to use my desktop with a wired ethernet connection (eth0) to operate my "TP-LINK TL-WN722N" USB Wifi Adapter (wlan0) as a non-adhoc (infrastructure mode) access point for my Android to ...
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4answers
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The system network services are not compatible with this version Ubuntu 14.04

I have Ubuntu 14.04 LTS installed on my PC. I have created some new accounts and then after I logged in to my own account there was no internet connection. When I try to open the network settings I ...
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9answers
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Wireless shows up as disabled, how can I get it working?

$ sudo iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm ...
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5answers
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How do I remove obsolete Network entries from Network Connection Applet

I see that I can delete networks that my machine "remembers" from nm-applet by clicking on the wireless icon in the panel and selecting "edit connections" -> "wireless". However, sometimes I click on ...
8
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2answers
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Exempt programs or domain from VPN connection

When I connect to a VPN, all my network traffic is automatically routed through it. Is there a way to add exemptions to that? I don't know if adding exceptions has anything to do with the VPN protocol,...
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1answer
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Network manager issue: The system network services are not compatible with this version [duplicate]

I have seen relevant solutions in askubuntu and other sites but none worked for me so far. I reinstalled network manager, modem manager, tried to upgrade them and manually install everything, also ...
7
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1answer
3k views

How to set an NFS network?

I want to merge information found here and there in order to record in one answer all steps to set my NFS network between my two Ubuntu PCs This is useful time to time, for example when switching to ...
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2answers
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Connecting to VPN prevents access to normal web sites

I have Ubuntu 10.04 installed with OpenVPN, and when I connect to a VPN, http access to non VPN sites stops working, until I close the VPN connection. To be more specific, both Chrome and Firefox stop ...
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2answers
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Disable Ethernet permanently to speed up boot time

I do not use the wired Ethernet Card. It seems to me that, Ubuntu is always trying in boot time to check the network via eth0, Which consumes some times and I guess this may slow down the boot process ...
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3answers
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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 ...
2
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3answers
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network bridge - without destroying network manager

I have seen a lot of questions related to Bridge and network manager. however none of them seem to apply to what i seen AND want. I setup my bridge in /etc/network/interfaces. This works perfectly; ...
2
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1answer
1k views

How to view connections on Ubuntu's Hotspot Access Point?

Using Ubuntu as a Hotspot access point is a very seamless setup, though there are a number of steps. However I can't find any reference to how to view the connections... the number of connections, ...
0
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1answer
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Unable to connect to mixed b/g/n wifi network on Ubuntu

I cannot connect to mixed b/g/n wifi Network. I am using wl drivers. Connection to other wifi networks is working well, but to this network I cannot connect from Ubuntu (from my android phone ...
68
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7answers
251k views

How to restart WiFi connection?

I think I do not have problem with hardware. Sometimes the WiFi connection simply disconnects, apparently. So this is not necessarily the same as this case, I might not need to reload any modules. ...
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4answers
40k views

What is the difference between Network Manager and 'ifconfig' 'ifup', etc?

Ubuntu seems to provide at least two network "toolsets" (for lack of a better term). I'm running into conflicts between these two. Network Manager Something which is more like the traditional network ...
19
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7answers
41k 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 "...
26
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1answer
11k views

Automatically disable wifi (wireless) when wired?

What's the best way to automatically disable my Wifi/wireless connection whenever I plug in a wired Ethernet cable? I'd like it to be re-enabled when I later unplug the wire. Also, I sometimes like ...
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7answers
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How to know what DNS am I using in Ubuntu from 14.04 onwards

(A follow up to similar question for 12.04.) Prior to Ubuntu 12.04, you may see the active DNS in /etc/resolv.conf. In Ubuntu 12.04, NetworkManager no longer works with the file. You have to directly ...
43
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2answers
178k views

How to reset network manager

I'm using Mobile Broadband using a nokia mobile to connect to Internet. All I did in my Ubuntu 12.10 is add 'new mobile broadband' (in terms of networking, no other tweaks). Problem: Yesterday i just ...
19
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4answers
37k views

Connect to network before user login

As a learning experiment, I'm trying to turn Ubuntu Desktop into a server. I was able to disable X at boot time and now, I am trying to get my computer to connect to my WiFi network at boot time, ...
17
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3answers
26k views

Can't connect to PPTP VPN with ufw enabled on Ubuntu 14.04 with kernel 3.18

Suddenly VPN disconnected and can't reconnect no longer on kernel 3.18.1, so I try to install kernel 3.18.2 but my problem still exist. But I can connect to VPN with 3.14 kernel easily. The output of ...
23
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7answers
50k 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 ...
8
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1answer
9k views

Can't resolve windows domains in local network

I've installed ubuntu on my computer at work because I think it is a perfect system for work which I do but I got some issues. I can't resolve domains from windows DNS server. Basically, we have two ...
16
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1answer
62k views

How to get a VPN for ubuntu?

I saw a thing called VPN connections under the Internet button at the top of my screen. So I would like more info on this, and possibly instructions on how to set one up. Thanks!
21
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1answer
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Set specific interface for internet access

I have a machine with three network interfaces running Ubuntu 12.04 LTS, 64-bit, kernel 3.5.0-49. I am using all three interfaces. Two of them are connected to LANs (eth0 and eth1) and one is ...
21
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2answers
136k views

How do I use /etc/network/interfaces instead of network-manager

I have 12.04 Desktop installed, how do I uninstall Network-Manager and set /etc/network/interfaces as the default file to resolve my network connections?
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5answers
57k views

Cannot disable Airplane Mode

When I use gnome network manager it indicates that wireless is disabled by hardware switch while it is not. Even in windows I can not turn on my wireless!
12
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2answers
47k views

“Activation of network connection failed” for ethernet connection

I have installed Ubuntu 18.04 on a Surface Book with dual boot, and I can't get the ethernet connection to work. Although the wifi connects, I keep getting the "activation of network connection failed"...
6
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2answers
5k views

Enforce VPN connection to access the Internet

I'm using a VPN when I'm online at an unencrypted wifi. Unfortunately, at my university the connection is quite unstable and at every reconnect the VPN connection is terminated and I manually need to ...
15
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5answers
4k views

Will ConnMan replace NetworkManager on the desktop for 11.04?

In the 10.10 release, Unity on the netbook edition used ConnMan. As Unity is now moving to the desktop for 11.04, will that mean that ConnMan will replace NetworkManager on the default Ubuntu desktop ...
13
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1answer
9k views

Make wifi preferable over wired connection in Ubuntu 14.04?

How do I make Ubuntu choose wifi connection over wired connection when both are connected to internet? I edited the Ethernet connection to route using the preference "Use this connection only for ...
12
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3answers
11k views

How can I have my VPN connect automatically when the wireless connects?

I have a working VPN connection using NetworkManager, OpenConnect, and the network-manager-openconnect-gnome package, but I have to start it manually every time I connect to a network, and I have to ...
10
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8answers
48k views

Why doesn't network-manager start at boot?

I think this started happening a couple of months ago when I upgraded from 10.04 to 12.04. Whenever I reboot, network-manager does not start. I have to manually run sudo start network-manager, and ...
8
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3answers
18k views

Wifi stop working after while on Ubuntu 14.04.2

Yesterday I bought new laptop Lenovo E540 and I installed here Ubuntu 14.04.2. But I've problem with my wifi (router is Dlink g version). I can connect to wifi without problems after turning on laptop....
8
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1answer
14k views

How to switch off wifi on startup or from the console

I have installed ubuntu 10.04 on a laptop. Wifi is switched on by default on startup. I can disable it rightclicking the network manager icon in the gnome bar. How can I set it to have wifi switched ...
5
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3answers
13k views

Auto-connect to hidden wireless without elevating privilege

When I boot my laptop into Ubuntu 10.10, the wireless won't automatically connect; it is configured, and I can get a connection using "Connect to Hidden Wireless Network..." and selecting the name ...
16
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3answers
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After upgrade to 16.10 ethernet stopped working [duplicate]

Network Manager reports: device not managed Output of sudo lshw -C Network: *-network DISABLED description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet ...
5
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2answers
5k views

How can I update a Network Manager connection from the command line?

I have a bunch of Ubuntu machines on my work ethernet LAN and I need to modify the default gateway. I'd rather not traipse round, interrupt people's work, to right click an applet, preferring instead ...
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1answer
1k views

Mobile broadband slow to be detected

-- UPDATE 1: relevant syslog lines. -- UPDATE 2: a step further. I was able to solve the GSM modem enable failed: (32) SIM PIN required loop specifying the PIN in Network manager > Edit connections......
0
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1answer
5k views

Fresh Ubuntu Install - No Wifi Networks Discoverable

I did a fresh install of Ubuntu 16.04.3 on my laptop, which is also running Windows 10. The install was successful and during the process I was able to connect to my wifi network with no issues (I can ...
10
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3answers
10k views

No Network Manager icon in the notification area, so I can't use my VPN connection

I've added a VPN using System > Preferences > Network Connections. However, I can't see how to switch it on, because there's no Network Manager icon in the notification area! nm-applet is running as ...