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

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356 views

VPN - short read (-1): 'Message too long'

So I'm trying to use my VPN at a hotel wifi where I'm on a vacation, but for some reason I get this annoying problem. When I connect to my VPN in about a few seconds it breaks, and syslog shows: Jun ...
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1answer
70 views

Wifi keeps on dropping in Ubuntu 12.04?

I am using ubuntu 12.04 and I am having issues with my wifi. Every five the connection drops in my laptop(it shows that it is connected to the network but the internet connection is not there) and I ...
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1answer
519 views

I can't connect to wireless network

I was trying to connect to wi-fi with lubuntu but I could not, I don't know exactly what is the problem, I used nm-applet and that was the result: nm-applet ** (nm-applet:13926): WARNING **: ...
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1answer
126 views

wicd-curses errors on fresh default 14.04 install

I have a brand new fresh 14.04 ubuntu install but cannot get wicd-curses to run. I can use wicd-gtk but I need wicd-curses to work as well. ERROR ~ sudo wicd-curses [sudo] password for ry: ...
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1answer
347 views

How can I route between different network using multiple ethernet card?

I have two ethernet card in the PC, eth0 is connected to the local network(192.168.0.0/24), and the other is connected to the internet. I can reach all the devices which are connected to this ...
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1answer
456 views

ubuntu 14.04 VPN: <info> VPN plugin state changed: stopped (6)

I'm trying to connect with vpn to work I get the following: Jun 11 17:48:11 MYLAPTOP NetworkManager[1104]: <info> Starting VPN service 'vpnc'... Jun 11 17:48:11 MYLAPTOP NetworkManager[1104]: &...
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0answers
511 views

Network Manager: Failed to determine AP security information

When I isseu the following command: $ nmcli dev wifi connect apname # or $ nmcli dev wifi connect macaddress It throws the following error: Error: Failed to add/activate new connection: (32) ...
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2answers
131 views

Is there a way to force use of one particular DNS server among multiple listed?

Before pushing new configuration changes on our DNS servers, I like to test and verify on a 'test' server before applying the changes on our 'production' servers. So this is my deck network config : ...
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0answers
81 views

Vpn problems with Ubuntu 12.04 are driving me mad. What further issue(s) could be contributing? And how do I fix it?

I'm using Ubuntu 12.04 and have had to manually configure my vpn since the network manager just wont connect for unknown reasons. Additionally I cannot use openvpn or vpnc as I don't have assess to a ...
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1answer
257 views

Wireless is not working in Ubuntu 15.04

I have an Intel Centrino N-1030 [raindbow peak] wireless card in my Dell Laptop. I've used Ubuntu on this laptop since 13.04 (I think) and didn't had any kind of wireless issue. I have Ubuntu 15.04 ...
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1answer
272 views

Spoofed MAC address - Internet disconnects

I have spoofed my ethernet MAC address using the "Edit Connections" option (available under the network) as well as by using macchanger. But I'm facing an issue of frequent disconnections, i.e. the ...
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1answer
304 views

Network Applet has disapeared after an update to 15.04 (unity interface)

I can't see if I'm logged on my wifi lan or internet lan since I update my ubuntu to 15.04 (I use Unity interface). I tried to update to kernel 4.0.3 but it changed nothing. The notification on the ...
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0answers
3k views

getting openconnect vpn to work through network-manager

this is the same issue as here: Getting openconnect vpn to work through gui , but my additions to it were deleted and i was asked to create a new question. in fact, there are a number of folks asking ...
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3answers
943 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 ...
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1answer
49 views

Definitive Guide to Wifi Dropping Consistently

This age-old problem seems to never go away. There are thousands of threads related to Wi-Fi dropping constantly. Unfortunately, almost all of them seem to have quick hack suggestions and no real ...
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1answer
388 views

Ethernet Network is disabled in 14.04LTS

When I first used Ubuntu 14.04LTS, I could use the ethernet network option in the network menubar to connect with lan, use the ftp server or browse another pc to share anything. I just need to connect ...
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1answer
1k views

iwlist set essid -> Operation already in progress

I am trying to connect to an AP with iwconfig in the command line: sudo iwconfig wlan0 essid "APname" Every time I execute it, I got the following errors: Error for wireless request "Set ESSID" (...
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0answers
131 views

Connect to network - network is unreachable

Although I am able to browse the net just fine I keep getting network unreachable when I run a download using my Java program. It was working fine till yesterday but now it is suddenly giving me ...
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1answer
122 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. ...
2
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1answer
303 views

Why is the content of /run/resolvconf/interface/NetworkManager changed every time I reboot?

I have some issue with my dns configuration, so I googled and picked up a solution by 1) editing /run/resolvconf/interface/NetworkManager and 2) running sudo resolvconf -u. This helped a little bit,...
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2answers
3k 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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2answers
2k 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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0answers
135 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
182 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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1answer
2k 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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2answers
3k 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....................... ...
2
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1answer
2k 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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1answer
187 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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1answer
78 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
156 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 ...
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1answer
248 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
70 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
266 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 ...
1
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1answer
264 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 ...
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1answer
4k 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 ...
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1answer
292 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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2answers
229 views

How does the system admin gets the ethernet address of computers in the network?

I am very new to system administration. Have a doubt, how does the system admin gets the Ethernet address information of the computers in the network. Actually my doubt is how does he determine the ...
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1answer
975 views

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 ...
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0answers
467 views

Creating a WWAN profile in NMCLI, or alternate way of connecting to 3G via CLI?

I need to connect to the internet via a TP-Link MA260. After spending hours with usb_modeswitch and other tools, I finally got the device to be recognised as a modem and have the interface wwan0. I'...
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0answers
40 views

Make Ubuntu set custom DNS for new connections by default

I am using custom DNS servers. For each new connection I have to add custom DNS servers manually. Is there a way for all new networks to have different DNS servers automatically?
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1answer
200 views

Different proxy servers to diferent networks

I'm looking to a alternative to configure a different proxy each time that I connect to a different network. By example: Network 1 (cable) - Servers - proxy 192.168.0.1:3128 Network 2 (wireless) - ...
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votes
2answers
1k 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.). ...
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1answer
125 views

Reconnecting interface from nmcli

I'm writing application in which I have to disable all network interfaces. Because nmcli nm enable false is only temporary (and autoconnects after some time), I use nmcli dev disconnect iface [...
0
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1answer
335 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' ...
0
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1answer
578 views

Xubuntu's Network Manager cannot detect wifi on Lenovo G450 laptop

I just recently installed Xubuntu 14.04 on dual boot in my Lenovo G450 laptop. For some reason, I can only connect to the internet on an ethernet cable since the Network Manager fails to detect any ...
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0answers
99 views

Wireless network icon won't display on the panel

I check the nm-applet on the terminal and this is what it showed up I search on the web for possible solutions for that and i tried it but it doesn't work out.
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3answers
14k views

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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0answers
317 views

cat: /var/lib/misc/dnsmasq.leases: No such file or directory

I've searched all over the internet, but couldn't find any answers of my problem.. I want to connect my Raspberry Pi to my laptop. But whenever i try to check the ip address of my raspberry, i get ...
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0answers
77 views

long delay to connect to vpn with network-manager

I upgraded from 14.10 to 15.04 and since then it takes ages to connect to vpn (vpnc) from the network-manager. First, I hit this bug which makes nm-applet unavailable at startup. After starting it ...
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0answers
414 views

Execute a network script at wake-up with systemd (15.04)

I would like to connect my VPN after wake-up. 1) I have created a script in my home (wakeup.sh) #! /bin/bash (echo "Sortie de veille: lancement de wakeup le $(date '+%d/%m/%Y a %H:%M')" sleep 30 ...