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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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VPN Connection forget password

After last update Kubuntu 18.04 pretty worked but VPN PPTP connection was broken. Day before I change VPN password and it was working fine, but today I found in logs: pppd[9962]: MS-CHAP ...
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kubuntu 18.04 eduroam(no CA) wifi problem on XPS13

Recently updated to 18.04 and swiched to a different eduroam network which doesnt require a CA certificate on setup. Since then I dont get a working internet connection. It shows that it connects to ...
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New wired connection profile just appeared

System : Ubuntu 18.04.1 I usually connect through the 'Wired connection 2' which was my only connection profile on the network manager. Today, when I logged in my computer, a new profile was there '...
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How to add an address to DNS

My system is Ubuntu 18.04 (Bionic Beaver). And I want to add 172.26.5.14 to system DNS addresses. I searched and found some solutions like: Add to /etc/resolv.conf. But data removed neither ...
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How to only use terminal to connect to a wifi hotspot which requires webpage login?

I have a server machine running at home. It has two network interfaces: cable LAN, and a WLAN. I ssh into this machine using its cabel LAN interface, because it is stable and robust. I need to use ...
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How do I find my network prefix?

I am reading Python Networking book: When a network device generates network traffic that needs to be sent across a network, it first compares the destination's IP address with its own network prefix....
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Ubuntu 18.04 - No Wifi networks found

I have Ubuntu 18.04 Dual booting with Windows 10 on my HP-EliteBook-745-G2, and for some reason, I cannot seem to find WiFi networks through my WiFi adapter, but Ethernet works (however, Ethernet ...
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Have Network Manager 1.10.6 reuse existing USB network connection (new network connections get created for renamed ones)?

I have a Bela.io (BeagleBone) device, which when attached to the PC (here Ubuntu 18.04 laptop) via USB, appears in Ubuntu as a Wired network connection (it also adds a removable drive, but that's ...
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Can't use DNS resolver even though I added to /etc/resolv.conf

I'm using a custom Ubuntu and I can't seem to use a DNS resolver. I updated my /etc/resolv.conf file so it would contain the line nameserver 8.8.8.8: # cat /etc/resolv.conf nameserver 8.8.8.8 but ...
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1answer
40 views

My Wi-Fi and DNS configuration completely messed up after installation of KDE connect

I need help to restore my Wi-Fi and DNS settings to previous state like was before installation of KDE connect. Now I have unstable Wi-Fi (every few minutes disconnect), I can ping, mtr from terminal ...
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1answer
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Ubuntu 18 Wifi won't connect, has worked before

I installed Ubuntu 18 on new desktop computer on SSD with dualboot on Windows on other SSD. My home wifi worked perfectly fine until one day, where it would not connect anymore, out of nowhere. I see ...
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MSI GS60 with Killer wireless 1525 can't suspend or shutdown

I am having a problem. I just can't suspend laptop or shutdown, it gets stuck. I narrowed down the cause and it appears it is wireless card, Killer 1525. Now I am on Ubuntu 18.10, kernel 4.18, ...
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ubuntu-Server 14.04 setup with 2 Lan's and virtualmin

I have Ubuntu-Server 14.04(64AMD) and Gnome Desktop setup on an HP x9400 Workstation. The workstation has 2, 4 core Opteron processors, 2 Nvidia DVI video outputs and 2 LAN's on an Nvidia MCP55, with ...
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Connect to different wifi networks in Ubuntu 18.04 LTS

I'm pretty new with ubuntu and I recently got a new laptop (Lenovo IdeaPad 720S) where I installed Ubuntu 18.04 LTS on. The trouble began when apparently there was no official driver for the network ...
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1answer
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Distrust wifi networks by default

How can I configure Network Manager to default to not automatically connecting to any WAP that I've connected to in the past? Meaning, if I want NM to autoconnect to a WAP, I want to manually ...
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After disconnecting from wifi I must “killall wpa_supplicant” before I can reconnect

Everytime I disable wifi or lose connection to that network I must do a "killall wpa_supplicant" before I can reconnect. If I don't do that, the system keeps saying "[my-chosen-wifi-point] is ...
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nm-applet - (dynamically) expand menu size

When having many WiFi SSIDs available, I need to scroll through the right-click menu of nm-applet widget menu by hovering over the arrow (see first screenshot below), yet the menu only spreads to a ...
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Make Network Manager allow monitor mode?

So, I was using Wireshark with my wireless interface on monitor mode for some testing on my network, it ran fine for about a minute before switching back to managed mode. Some research led to me ...
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How to fix/setup DSL wired connection in Ubuntu 18.04?

I'm using Ubuntu 18.04, was using a wired connection without problem (this connection does not require username/password), but yesterday I tried to setup a wired connection with another ISP and couldn'...
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GNOME network manager error when connecting to hidden WiFi network

Screenshot I tried to connect to a hidden wifi network with WPA-PSK but when I would choose the "WiFi security" option only "none" option I got. I use Ubuntu 16.04 net install. I installed the GNOME ...
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nm-applet (network-manager): can't connect through TLS

When I try to connect to a network through TLS authentication I get the following error in my journalctl: NetworkManager[879]: <info> [1538745226.0411] device (wlp3s0): supplicant interface ...
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Ubuntu 18.04 WiFi access not authenticating

I've had this problem since 16.04 and hoped it would resolve itself in 18.04. Since it hasn't, I'm making this post: My GalagoPro running Ubuntu 18.04 connects at home without issue. Username and ...
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Is there a way to create a general access point entry in Netplan?

Is it necessary for me to create an access-point entry for each AP I use in order to use VirtualBox's bridge adapter? Edit: this was the netplan config I tried before network completely crashed. ...
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Server returned error NXDOMAIN Preventing boot Kubuntu 18.04

Message from failed boot, 1st boot up every time, boot stops at line 1310 no further progress whoopsie[978]: [16:10:29] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/1 ...
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Resolving internal domains stops randomly while local DNS can still be pinged

Our local network has internal domains that end on .int. When running Ubuntu 18.04.1 LTS as guest in VirtualBox running on a Windows 10 host, it randomly looses the ability to resolve those domains. ...
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OpenVPN via Network Manager not working

I have set up an OpenVPN server to which I can succesfully connect from Android and iOS devices. I am having troubling setting up my Ubuntu 18.04 machine as a client. I installed the gnome OpenVPN ...
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1answer
37 views

Use USB wifi instead of internal - manage

I am using Ubuntu 18.04 on an Asus laptop. The internal wifi does not recognize 5GHz channel so I purchased a TP-Link T9UH. I followed the first half of the answer found here How to compile TP-Link ...
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Ubuntu vpn connected but can not open blocked sites

I use Ubuntu 18.4 PPTP service to connect to VPN when I try to connect this service connection accept, Now I can visit sites that send me 403 error ( Access error ) but to connect blocked sites ...
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mobile broadband sim doesn't work with Ubuntu 18.04 but does work in same device running Windows 10 Pro 64bit build 1803 (dual-boot)

Background I have a Panasonic FZ-G1 MkIII Toughpad touchscreen tablet PC which is based on an x86-64bit Intel® Core™ i5-5300U CPU @ 2.30GHz, with 4Gb RAM. This is dual-booted with Windows 10 Pro ...
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27 views

Configure iwconfig with advanced parameters

I have a wireless network which is configured in the following way : Wireless security as WPA & WPA2 Enterprise Authentication as PEAP CA certificate --> None Peap version --> Automatic Inner ...
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Is there any WiFi Hotspot Manager like Applications on Windows?

How's going? Linux is more stable for creating WiFi hotspot then Windows (what I've found using & as my connection is a DSL connection). I did use it flawlessly before someone spending using my ...
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Ethernet connection Ubuntu 18.04 not working

I had installed ubuntu 18.04 on my Desktop and network doesn't work, also the icon doesn't appear. I don't have wifi adapter. this is the output of sudo lshw -C network *-network UNCLAIMED ...
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Installing Lxqt on top of Kubuntu 18.04 I have no wifi indicator in panel

This is a QnA ~ Posted in order to provide an answer. Installing LXQT on top of Kubuntu 18 I have internet connection but I cannot see details about it nor can I see a list of available networks. I ...
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Remmina connection via gateway not working from one machine when in certain network

I am facing a weird issue. My company has a remote desktop server, which can be accessed via a gateway. Remmina is configured and workes well with that connection when I'm at work with my laptop. ...
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1answer
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nmcli dev wifi list only sees open networks

Running a scan with "nmcli dev wifi list" is only showing me entries for routers that do not use any WEP/WPA encryption. I can see about 30 different routers from my phone's wifi scan. The only one ...
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Disabling WiFi when I plug in ethernet cable

I would like to have WiFi connection disabled when I plug in ethernet cable. I was trying to use following script from: https://www.richud.com/wiki/Ubuntu_disable_wifi_on_ethernet_connection Script ...
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Can't make Dell Gateway 5000 with Ubuntu Core 16 as Access Point.

I am working on Dell Edge Gateway 5000 series and have installed Ubuntu Core 16. I am trying to make it as Access Point. I have inserted a sim card in it and have created a connection with the command ...
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Xubuntu 18.04 Openvpn not working correctly

So far after gleanming a few posts I have it working. I am using the X desktop using the gnome network manager to add Openvpn connections. It apears to be a bug and I am not sure how to fix it. ...
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network-manager won't connect with self-signed cert

I had an openconnect VPN working until they chaged the cert. It's self signed and my syslog looks like this: NetworkManager[777]: <info> [1537936242.5306] settings-connection[0x55a6b75f3520,...
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network-manager broken and no internet access [duplicate]

I was trying to fix a VPN issue, and I apt-get purged, and now it's all broken. I was able to create a USB desktop image, which i am using right now. I have a hard-wired ethernet thats working fine. ...
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1answer
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Editing system-connections/Hotspot file gives authorisation error while connecting Ubuntu Hotspot

I have successfully created hotspot in Ubuntu to share my wired internet connection. Newly formed connection works fine with WPA. I edited hotspot connection using nm-connection-editor command. ...
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1answer
45 views

Raspberry Pi 3B with Ubuntu Server(CLI) with No Ethernet Recognition and No Wlan0 List

Everyone! I'm a totally beginner for Raspberry Pi. Now I 'm trying to connect raspberry pi 3B with Ubuntu 16.04 LTS Server to the ethernet and wifi. However the etheret and wifi can not recognized. ...
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How to edit Network Manager in Ubuntu 18.04?

I discovered a bug in Ubuntu 18.04 in my system which didn't let me connect to PEAP networks. On searching I found the solution was to edit the configuration file of that wireless network. But ...
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2answers
56 views

Can you force network manager to use localhost for new wifi networks?

When connecting to a new WIFI network (via nm-applet) is there a way to force NetworkManager to default to using localhost as DNS server instead of defaulting to DHCP's DNS? I know how to change it ...
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1answer
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Ubuntu 18.04.1 - System settings after removing network-manager and installing wicd

I've been having some issues with my wireless connection for some time, even in Ubuntu 16.04 A couple of weeks ago I finally switched to the new Ubuntu version and I still had the same problems, my ...
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1answer
52 views

Gnome Network Manager failing to connect

I set up my network manager, and was able to set up a VPN, but when I go can click the on/off slider, it blinks and stays off. I get this error is the syslog: <info> [1537687904.4383] audit:...
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1answer
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(Got no data packets from target network!) error in aircrack-ng ubuntu

I try to hack WPA2 wifi so this is what i do: airmon-ng start wlan0 airodump-ng wlan0mon airodump-ng --bssid (bssid) -c (channel) --write wpa2 wlan0mon aireplay-ng --deauth 100 -a (bssid) wlan0mon ...
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Repeated reconnect for internet access

Whenever I connect to my home WiFi network through my laptop it works for a certain time but then fails to access the internet from thereon. A workaround that I have found is to reconnect to the ...
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1answer
28 views

Connect via DHCP via LAN cable between a Windows and Linux device

I am working with DHCP IP addresses. When I connect my device to a server, the server generates an IP address that it then assigns to my device. Which is great! I am trying to connect my PC to my ...
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1answer
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How to connect to VPN L2TP IPsec in Kubuntu 18.04 LTS?

I have to connect to a Cisco Meraki VPN. I am using a fresh installation of Kubuntu 18.04 LTS. I was given a public IP, a VPN user, its password and a pre-shared key. I opened the network manager and ...