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

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My WIFI connection randomly drops

My Wifi connections randomly stops working. And the only way to "bring it back", without a click on wifi icon, is to open the terminal and type sudo service network-manager restart then it's ...
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18 views

No wired connection until suspend

Whenever I turn computer my wired connection is not working. The network manager sees the connection but it just keeps "Setting network address". The whole problem is fixed by suspending and waking up ...
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2answers
66 views

Realtek RTL8723BE wifi card not detected and no internet via Wifi or Wired connection [duplicate]

When I am installing Ubuntu I cannot connect to my wifi network. It keeps trying and finally fails. After installation I am not able to use internet either via WLan or even if I directly attach the ...
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53 views

Wifi connected but no internet access?

Hi I'm new to the world of Linux and I just installed xubuntu on my laptop. The issue im having is that In network manager it says I'm connected but I can't download any updates from the cmd line or ...
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1answer
69 views

Cannot access the Internet even though ethernet is connected? DHCP problem

I am currently running Ubuntu 14.04 on my Lenovo z500 laptop. I use the same laptop at my work and at my home. MY work place uses a static IP so I have to manually set my IP address in the network ...
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0answers
66 views

KUbuntu 16.04 Networks not displaying and WIFI networks

I've been searching for a resolution for the past week after applying updates (No idea what update broke this). Anyway WIFI is working just fine but because there is no connected WIFI network in the ...
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23 views

Wifi signal says “not enabled”

In the right corner in the wifi spot, it has no bars and no networks are showing up. This is the format of the wifi option. Ethernet network (grayed out) device not managed (grayed out) Mobile ...
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1answer
110 views

Wireless networks not working Ubuntu 16.04

I don't have any menu about wireless in my network menu, only a grey option called "Ethernet Network (Intel Wireless 8260)". "Edit connections" also doesn't show wireless. In "Software and Updates", ...
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27 views

Keep loosing wifi connection on my Ubuntu Laptop

I have Ubuntu 14.04 on my laptop and I have had a problem with the internet connection recently. The problem is that the wifi connection is being lost at a random interval. There is nothing wrong ...
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17 views

Hostapd error while starting

I have disabled network-manager for using my wlan1 interface in oder to have it "free" for hostapd . This is my ifconfig info for wlan1. wlan1 Link encap:Ethernet HWaddr UP BROADCAST ...
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54 views

Can't connect to pptp VPN

So I'm trying to connect to a pptp vpn, but with no avail. I can connect to other types of vpns fine and in fact, at work I can connect to the pptp vpn too. However on my current internet access I ...
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39 views

NetworkManager, unknown authentication passwords, and XScreenSaver 5.15

I used to use a laptop running Xubuntu, but then got a new one. It's been a year or so since I booted it back up and this is what I noticed. It's been so long I cant remember what it is so I tried ...
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26 views

Masquerade over USB Ethernet Problem

I am trying to create a hotspot with a captive portal for my company. First thing I needed to do was share my internet access. So, what I am trying to do is, have internet cable plugged into eth0, ...
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40 views

Seamlessly switch between ethernet and wifi

At home, depending on room, signal pertubation (many Wifi networks around), and phase of the moon I connect to the modem/router with Ethernet or Wifi. In practice this means either Wifi alone, or Wifi+...
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35 views

IP connections times out after “Internet usage”

let's start with the typicall: My computer is behaving weird :-( I have been looking for the source of the re-occuring error for weeks, hopefully you guys can help me figure it out :-) What is the ...
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1answer
35 views

Script won't Start on Logon of Raspberry Pi 3 [closed]

I am wrote a Bash script that will be run on log-on for the Raspberry Pi running Kali Linux. The issue lies when the linux system starts up, I have to physically SSH into the terminal for the script ...
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38 views

Wifi SSID dependent PAC proxy configuration file

At work, the Wireless Network Name (ssid) is "WLAN-WORK". After connecting, it requires a specific proxy X.X.X.X to be used. In all other networks in the world, this proxy is not required, and ...
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1answer
32 views

Cant connect to wifi, try connecting and it does nothing

First of all i am a beginner, please explain everything you need me to do in detail. Also, this is a fresh install of ubuntu 16.04 LTS When i try to connect to my home wifi network it will say ...
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1answer
77 views

WIFI status icon can't sync with my WIFI status in the upper status bar!

When I use wireless network,the network status icon show up wireless connection icon.WIFI connection status icon But when I use command ifconfig wlan2 down to disconnect wifi,the network status icon ...
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0answers
31 views

Lenovo T400, Ubuntu 14 wireless hardware not working consistantly

I'm using Ubuntu 14.04 on a Lenovo Thinkpad T400. My hardware indicator switch goes off and I am unable to connect to wireless. The network manager tool will not even display a wireless interface. ...
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0answers
26 views

University Wifi DNS Problem

I hope you can help me on this problem because this is a major roadblock for me. Also sorry for any typos as I'm doing this via phone. For the summer, I am housing at a university that does not ...
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99 views

How to manage network settings when using ConnMan in Ubuntu 16.04?

I installed ConnMan (Connection Manager) in Ubuntu 16.04 and want to know how to conveniently manage/configure my network settings now. To install, I used: $ sudo apt install connman This replaced ...
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2answers
47 views

Forbidden cloned MAC addresses?

I've been testing the cloned MAC address feature of Network Manager on a wireless connection and found out something odd: some particular addresses, such as 00:00:00:00:00:00 and 11:11:11:11:11:11, ...
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1answer
32 views

Configured a static ip but it didn't take effect immediately

So I configured a static ip connection on the GUI but it didn't seems to take effect when I check with ifconfig. I think if I restart the computer, it'll take effect but it sounds "overkill" for an ip ...
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1answer
189 views

need to restart network-manager after upgrading to xenial xerus

I recently upgraded my toshiba satellite Pro L640 laptop to ubuntu 16.04. After resuming from suspend the network manager stops working, I am unable to see any wifi routers within range. I have to go ...
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41 views

I'm connected to Internet but network manager applet shows off-line in ubuntu-mate 16.04

I have installed ubuntu-mate 16.04 on my desktop. I'm using Idea Net Setter device for Internet connection. My problem is that my PC is connected to Internet and Internet connection is working ...
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12 views

All net conections disapear

I have Ubuntu 15.10, where I was installing some stuff like smartcard drivers, pulseaudio ... and when I rebooted the computer, all the net setting disapear. No nm-applet, either network manager. If I ...
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1answer
84 views

ethernet not detecting

Ethernet is not detected in ubuntu14.04. It is detected only after running "sudo ethtool -s eth0 autoneg off speed 100" and after that it works without any problem. It has to be done after every boot. ...
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1answer
51 views

Change OpenVPN options with Network Manager (16.04-DT)

I used a setup script from my VPN provider (PrivateInternetAccess.com) to configure the VPN settings in Network Manager. Problem is that my ISP drops the connection once a day and then assigns a new ...
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1answer
24 views

Network icon not shown

After an update in Ubuntu 14.04.4 LTS trusty the network icon is missing. The network is working ok just only the icon is not shown in the top bar. This is the second time it happens after an update ...
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0answers
211 views

Ubuntu Gnome LTS 16.04. Laptop's wifi keeps cutting out and it won't scan for networks

Randomly, my wifi goes out and all networks disappear from the list. Refreshing does nothing, it won't scan. I have to go to Connect To Hidden Network in settings and manually type in my SSID and ...
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107 views

NetworkManager doesn't store password for 802.1x

If I create a new ethernet connection, fill in correctly 802.1x security options with correct password and save, it will immediately prompt for password. If I write in correct password once again, it ...
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1answer
152 views

PPTP connects fine but fails shortly thereafter

I'm using 16.04 LTS amd64. My pptp connection used to be fine a few days ago but from yesterday on it malfunctions. It connects with no problem but shortly within 3 or 4 minutes drops the connections. ...
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78 views

Why Xubuntu 16.04 wireless connection fails so often?

I usually don't ask "stupid" questions like this, but the wireless connection in Xubuntu 16.04 is killing me!! I'm browsing the internet like any regular Joe and all of the sudden Chromium is telling ...
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27 views

Installing Gnome-Network Manager

I use Ubuntu 14.04 (LTS), I want to create Hot-Spot, My Desktop Environment is Xfce, I want a graphical Gnome3 Network manager in order to create a Hot-Spot, I tried to Install by using this Command, ...
2
votes
1answer
36 views

VPN, Loopbacks, Ubuntu Server, And VirtualBox

Is it possible to create a VPN server in VirtualBox, and then connect to it from the same machine? Also, will it actually secure my information if I'm using public wifi? I'm a novice when it comes ...
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1answer
39 views

Problem wired connection ubuntu LTS 14.04

I have a problem with my network wired connection, my general problem is when I plug the ethernet cable it doesn't work. But the problem is the following, if my computer is on and later I plug in ...
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1answer
39 views

NetworkManager segfault every time I disconnect

Every time I disconnect from a wired or wireless network using the network manager applet, I get this in dmesg: [ 2036.633608] NetworkManager[13108]: segfault at 8 ip 000000000048abc6 sp ...
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1answer
60 views

15.10 - Cannot connect to wireless networks at home, but can at remote locations?

Ever since I plugged in an ethernet cable into my laptop at home I cannot connect to the wireless network anymore. It doesn't list any of them. Before it was working fine. The weird part is, whenever ...
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0answers
131 views

How to specify additional search domains for resolver in 16.04 when using DHCP?

With Gnome Ubuntu 14.04, it was possible to specify additional search domains for the resolv.conf, when editing a network connection, like so: But where do I find this field for the "additional ...
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0answers
80 views

WiFi Not working in After Installation in ubuntu 16.04

all I am facing a problem with my wireless. When I tried Ubuntu 16.04 Live, Wireless was working fine, but after installation Wireless is not working, My Machine in HCL ME (i3). The Machine has ...
9
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0answers
413 views

SLOW Boot and Login times Ubuntu 16.04

Ubuntu 16.04 64 bit taking around 20 sec from Login screen to desktop and around 20 seconds from grub to login screen, tell me which services i can safely disable, i do not use virtualbox and ...
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0answers
27 views

System Wide Proxy Setup - Must Or Optional

I would like to understand few things about system wide proxy on ubuntu. When a system wide proxy is set from network settings, does all applications (regardless from user) use this proxy or can ...
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2answers
108 views

VPN connection and network manager

I premise I'm new in the Linux world. I'm using Ubuntu 15.10 and want to connect to a VPN. I type this in the command line: sudo openconnect --juniper vpn.unipi.it I give it all the needed ...
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0answers
83 views

How to control startup options of dnsmasq?

I'm on Ubuntu 16.04 Xenial and Network Manager started dnsmasq for me with these options: ~/ ps awux|grep dnsmasq nobody 2649 0.0 0.0 54488 3588 ? S Mai23 0:00 /usr/sbin/dnsmasq --...
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1answer
32 views

Unstable WiFi on Ubuntu14.04.4 LTS (dual booted with windows7)

I dual booted my PC with Ubuntu 14.04.4(trusty), with Windows7 installed first. WiFi worked on Ubuntu for 2 weeks perfectly fine and then became unstable. It connects after rebooting for the first few ...
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37 views

Network manager 14.04 continues to disconnect randomly after lib's were upgraded on 2016-05-13

While the disconnection/re-connection problem has gotten less frequent, the network manager continues to disconnect randomly. I've tried three wireless dongles and it still disconnects randomly with ...
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55 views

network-manager times out connecting to openvpn server (TLS error)

I am trying to connect to an open vpn server through the network manager; below are the system logs for connecting through NM and using the client directly. The client connects fine but NM doesn't NM ...
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99 views

Kubuntu 16.04 - Wireless card is crashing and cannot be restored

Hardware: Dell XPS 13 9350 Wireless Card: Intel 7265 11ac Wireless Card with Bluetooth 4.0 Symptoms: At seemingly random times, the network will drop and the wireless interface seems to disappear. I ...
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1answer
387 views

How can I set mac address using the command line in Ubuntu 16.04?

With Ubuntu 14.04 when I wanted to connect to a network using a different mac address I would run the following commands sudo service network-manager stop sudo ifconfig $interface down sudo ...