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

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Set static IP Ubuntu 16.04

I am a new with Linux, having years experience with Windows servers/desktops and am having issues setting a static IP. I am using a method used for previous versions of Ubuntu, which doesn't seem to ...
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1answer
421 views

16.04 LTS wifi connection lost randomly every 5 minutes [duplicate]

First I had this issue described here 16.04 LTS wifi connection issues but nobody was able to provide a valid answer. Recently this wifi connection issue gets even worse. I would lose wifi connection ...
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42 views

Cant SSH to remote server trought VPN

Currently am running Ubuntu 16.04 with installed and configured CiscoAnyConnect VPN. When I connect to VPN, I can't ssh to remote servers. SSH is just standing and nothing is happening. I can ping ...
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0answers
39 views

Not receiving IPv6 RA packets

I have a new Dell XPS13 Sputnik edition that came with 14.04 installed and it's not picking up an IPv6 address by auto configuration. Network manager is set to Method: Automatic Running wireshark I ...
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0answers
21 views

Troubleshoot personal internet failure, vol. 2

This a follow-up from here: Troubleshoot personal internet failure, where: sudo service NetworkManager restart was proposed. However, Internet failure again today. I did the restart, but this didn'...
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1answer
254 views

How do I import a saved VPN configuration in 16.04?

I'm using vpn.ht and it provides a configuration file that you download and import for the network manager. Starting with the 16.04 update (I did a clean install), I can't import a saved configuration ...
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1answer
216 views

Can't connect to WPA Enterprise wifi after upgrading from 15.10 to 16.04

After upgrading from 15.10 to 16.04, I can't connect to my university's wifi (eduroam), which uses WPA2 Enterprise security. I'm certain the passwords and settings are all correct, and I had no ...
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0answers
51 views

How to check for multiple hidden network SSIDs?

Hypothetical situation: I have 10 identical (snappy ubuntu core) devices in the same room. Every device has an identical list of 10 hidden network SSIDs and password combinations. When turned on, ...
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1answer
284 views

No network connections after 16.04LTS install

On a fresh install dual boot win7/16.04LTS. Internet woirks fine on windows but I have no wired or wireless connection on ubuntu. It would just try to connect forever. I can not ping google, and I can ...
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12 views

wireless unable to ping after 5-7 hours of iperf testing

I am currently working on an embedded board. The image has been prepared with support of OpenWrt. The athpci driver is used for wireless connectivity. Setup: One of the board acts as an AP and all ...
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0answers
15 views

Kubuntu doesn't want to connect to known networks anymore, only new ones

This problem happened all of a sudden, without an upgrade or so being done. I have had no trouble connecting to networks in the past. Since a few days ago however, I can't connect to existing ...
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392 views

rtl8723be drops wifi connection on hp pavilion notebook ubuntu 16.04

I have recently bougth a HP Pavilion Notebook and performed dual boot with ubuntu 14.04 lts and noted that no wifi networks on first boot. I've searched a lot (really) and did lots of stuff (installed ...
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35 views

Lubuntu 14.04 Network manager issue

Please help me with this outdated problem. I searched the forums and tried everything but I still can't make the network manager appear. Can anyone guide me step by step to check where I messed it up?
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2answers
420 views

How to install RTL8723AE driver on ubuntu 16.04?

I'm trying to config ubuntu 16.04 on a MSI s12 notebook, but the network adapter (RTL8723AE PCIe Wireless Network Adapter) is not recognized by ubuntu. $ iwconfig syas: lo no wireless ...
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3answers
393 views

Unable to connect the weak wifi signal to Ubuntu 16.04

I have Ubuntu 16.04 installed in my computer, I have Broadcom Wifi in my computer. This wifi is not able to connect to the weak wifi signals around the computer, these are connected by my friends' ...
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1answer
56 views

Set specific network interface for internet access (II)

I am using Ubuntu 14.04 with MATE, and my problem is that when I use a local Ethernet cable to access local network via a router (which is not connected to Internet), and at the same time Wireless (or ...
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1answer
78 views

Unable to understand ifup/ifdown proceedings

I am trying to setup virtual ip for ucarp. But after configuration something strange happens with ifup ifdown as try to view the configurations. I change /etc/network/interfaces like # interfaces(5) ...
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3answers
1k views

NetworkManager asks for password repeatedly [802.1x][16.04]

I recently updated form 15.10 to 16.04, I live on a campus, and we have to sign in for internet through 802.1x. I did everything same as I did it on 15.10, but I can't sign in on ubuntu 16.04. After i ...
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20 views

Conserve public IP access when using VPN

A remote computer with Ubuntu 12.04 LTS has a public IP and has to access computers in my local network. I already have a VPN server launched and the remote computer is successfully authenticating ...
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0answers
17 views

Block internet acccess unless VPN is active

I need to connect ONLY through a VPN, so if the VPN is down or the connection to the VPN is lost there should be no routes to Internet available, is this possible? To exemplify: UBUNTU OS MACHINE -&...
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23 views

Does NetworkManager Cache Managed Interfaces

Does Network Manager cache which interfaces to manage? I listed eth0 in the /etc/network/interfaces to configure a static IP address but want to go back to just having NM manage it. I comment out ...
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1answer
22 views

Add feature of network manager not working

Network manager in 16.04 will not allow openvpn to be added in the settings screen. The 'add' button does not become 'solid' it stays in a faded state.
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2answers
176 views

UBUNTU DHCP not assigning IP address to clients.

I have a minimal knowledge about ubuntu. I am trying to run a DHCP server on UBUNTU so as to share Dongle 3G Internet. I disabled router's DHCP and followed the following guide to setup DHCP server in ...
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40 views

Ubuntu 16.04, sundance net module has to be removed and added to work

Hi my issue is sundance module for Ethernet controller [0200]: Sundance Technology Inc / IC Plus Corp IC Plus IP100A Integrated 10/100 Ethernet MAC made by Asustek. My Ubuntu 16.04 box boots with no ...
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1answer
49 views

Cannot set IPv4 address

I am trying to install Ubuntu 14.04 in HP EliteDesk 800 G2 SFF, in which Windows 7 is also installed. While wired network connection works well on Windows, it doesn't on DVD-booted Ubuntu. Then I ...
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1answer
1k views

OpenConnect VPN not in Network Manager in 16.04

I have network-manager-openconnect-gnome installed, but there is no option for OpenConnect in Network Manager. If I run sudo openconnect vpn.work.com And enter my details, I can connect to my work ...
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745 views

“error: the plugin does not support import capability” when attempting to import openvpn config file

Gnome network manager can't import any openvpn config file (.ovpn) after upgrade ubuntu to 16.04 version; I get the following error message when I try to import openvpn config file: The file 'file-...
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2answers
1k views

Intermittent NetworkManager error on importing .ovpn files or editing such connection in 16.04 only?

"connection.gateway-ping-timeout: cannot set property: value of "###" of type 'guint' is invalid or out of range for property type 'gateway-ping-timeout' of type 'guint' " "###" is sometimes a ...
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23 views

Why does a new tun connection appear in NetworkManager when a VPN connection is established?

This connection appears in addition to the VPN (openvpn) and it disappears when the VPN connection is closed. I can see it has route settings and the following line appears in the system log: set '...
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3answers
4k views

Clean install ubuntu 16.04 cannot connect to wifi using NetworkManager, but nmtui works

I've performed a fresh install of Ubuntu 16.04 on my Asus N56VZ. Sadly, i cannot connect to wireless networks using the NetworkManager. I am able to see wireless networks, though. I tried to connect ...
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0answers
9 views

network setting with xen hypervisor

I have installed xen on my ubuntu 14.04 by following the instructions at here: http://ubuntuforums.org/showthread.php?t=2008795 However, after the reboot, on the logo screen (still no desktop), it ...
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6answers
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No more AnyConnect compatible vpn transport in Ubuntu 16.04?

Following my previous experiences with setting up Cisco AnyConnect VPN connections on Ubuntu 14.04 I tried the same approach here by installing packages: sudo apt-get install -y network-manager-...
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3answers
3k views

cannot import saved openVPN configuration file in Ubuntu 16.04 LTS

I am trying to import a .ovpn file from the network manager. Here are the steps I follow. Network Manager -> VPN Connections -> configure VPN.. This opens the Network Connections dialogue. Then, Add -...
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1answer
753 views

16.04 can't connect via DSL

I am on a DSL network which wont connect in Ubuntu 16.04. Tried all the mentioned solutions here, none of them worked. Also pon dsl-provider is not an option for me.
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1answer
26 views

Problem connecting to private IP address

The value of my inet addr is different for my laptop and my router, as they are on different networks i cannot proceed with sudo apt-get update. Im new to ubuntu so dont know how to use the Network ...
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2answers
1k views

Allow only network connections but not connect to internet

I can do this by going to the network manager edit connections > myconn > ipv4 > routes and check "use this connection only for resources on its network" all this without inputing my sudoer ...
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1answer
2k views

Unable to connect to the Internet using wired connection, even when its plugged in

I recently clean installed Ubuntu without dual boot, so everything was erased, but now I'm unable to connect to the Internet, even using wired connection. On "Connection Information", it says it is "...
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0answers
63 views

Ubuntu 15.10 make a hotspot… Again

I've used to share the internet from my computer to a tablet by manually setting the wifi connection mode to ap, as described in numerous places. Here for example: Create WiFi hotspot on ubuntu ...
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0answers
9 views

Port Access through VPN

I'm trying to access a PC from behind a VPN (PIA) using the Network Mgr on Ubuntu 14.04.4 but having some issues. Without the VPN up, I can access WANIP:8022 which port forwards to 192.168.1.10:22, ...
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2answers
157 views

What are alternative reasons for low network connectivity?

Excluding this, as I have tried all methods listed on this site. And excluding this and this, they are in the aforementioned site. What are possible causes for a software based slowdown of internet. ...
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1answer
94 views

Ubuntu 15.10 connect to VPN server on port 443 without certificate

I need to connect to a VPN server from Ubuntu 15.10. I know gateway, port 443 username and password. Usually I connect from Windows using Forticlient, but there is no version of this software for ...
0
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1answer
66 views

Next problem with wlan0

I have installed Ubuntu 14 and can't connect to WiFi. Tried to find solutions by myself but still things don't work out. Steps I have taken: Went to Software And Updates -> additional Drivers and ...
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1answer
2k views

Can not connect Huawei e3372 modem on Ubuntu 15.10. Please help

I got a new Huawei E3372 modem for my 4G data connection. I have not been able to make it work, since it does not show up in my Network Manager. Can some one point me to the correct direction on how ...
0
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1answer
1k views

Mac address spoofing failing

I've been trying to spoof my mac address for awhile now, because I want my brother's laptop to be using my data allowance at college (I don't use much bandwidth, most of mine goes to waste) and for ...
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0answers
13 views

DNS issues when ever I switch networks

I am having DNS issues, where when ever I switch networks, I can only access IP addresses, no domain names. I then run: $ sudo dpkg-reconfigure resolvconf which allows me to then start using the ...
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0answers
49 views

Network manager icon missing on ubuntu 15.10

I installed ubuntu 15.10 few days back. The wifi indicator was there in the taskbar for two days. And then the network indicator disappeared from the panel. I have tried running nm-applet in ...
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0answers
25 views

Wired Network Disconnections - Reconnects Only After Reboot

After booting the system, the network seems OK. There is full connectivity and no sign of failure. After a random length of time (between 3 minutes to 4 hours) all connectivity is lost. I cannot ...
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1answer
1k views

Configuring openvpn client behind router

I have a dlink dir-645 router which is connected to cisco modem. My laptop (Ubuntu 15.10) is connected to this router via wi-fi. I have a problem with openvpn connection. When laptop is connected ...
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1answer
1k views

VIrtual network

I want to impliment pfsense to the local network. So before that I have to test it in a virtual environment, say couple of virtual-machines in an Ubuntu host using virtual box and one pf-sense machine ...
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0answers
25 views

Mobile Broadband Card Viettel (cdma and gsm)

I'm running Ubuntu 14.04 on my HP Elitebook 8460p equipped with a mobile broadband card (Sierra AirPrime MC8355) I removed the card, and tried to add a mobile broadband connection. I am in Vietnam, ...