Questions tagged [networkmanager]

NetworkManager is an application tool to simplify the multi network model on a single or multiple interfaces.

290 questions with no upvoted or accepted answers
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13
votes
1answer
5k views

Random “deauthenticating by local choice (Reason: 3=DEAUTH_LEAVING)”

I'm running uname -r 4.10.6-1-ARCH on my dell XPS 13 developer edition (2014). I'm currently having strange problems with my wifi (I use Networkamanger with nm-applet for KDE): 1) at the most ...
10
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0answers
2k views

Cannot connect to WiFi with nmcli, although secrets are provided

I am using nmcli on ArchLinux (version 1.14.5dev+17+gba83251bb-1 from the official package repository) to connect to wifi. This works perfectly for all wireless networks apart from this one Vodafone ...
7
votes
4answers
9k views

Elementary OS shows WiFi networks, but won't connect

In the top bar, clicking the network icon shows a list of networks. My school's network, which on Windows I would connect to, and then visit a login page in Chrome in order for it to work, shows on ...
7
votes
1answer
3k views

nmcli no longer allow settings modification?

When I try to modify network manager settings with nmcli, it says Error: 'con' command 'modify' is not valid. So if nmcli con modify XXX command is no longer supported, what is the substitute? EDIT ...
5
votes
1answer
6k views

grub recovery mode: etc/resolv.conf: no such file or directory

I’ve installed Ubuntu 16.04 on my laptop a few months ago and suddenly I can t get past the splash screen. (I see the red dots gradually becoming white and vice-versa, so something is happening, but ...
5
votes
0answers
1k views

NetworkManager Default Connection Settings

I'm trying to modify NetworkManager's default DNS settings so that whenever I add a new connection it uses 127.0.0.1 instead of the default DNS for that connection. I still would like to be able to ...
5
votes
1answer
5k views

How to debug DHCP timeout on WiFi connect?

I've recently moved to a place with public WiFi (so I don't have access to the router or their DHCP config), and am running into issues connecting with my Arch laptop. I've tried using both ...
5
votes
1answer
970 views

Use network-manager in different netns

In continuation of my last question about using netns as a relugar user, I'm now looking for a way to open VPN tunnels as a regular user. So I naturally thought about network-manager. Any user can ...
4
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0answers
412 views

Where can I set advanced settings (like fast_reauth) in network-manager?

Is there any possibility to change "advanced" default settings in Linux Mint's network-manager (like fast_reauth=0)? I can see that there are config files in /etc/NetworkManager/system-connections/, ...
3
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0answers
58 views

Polkit not working when trying to reload nmcli connection

I'm currently working on an Archlinux system and I try to configure rules used by polkit so users inside network group are able to run nmcli commands. I've create a polkit rule as follow : polkit....
3
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0answers
597 views

Adding additional nameservers with resolvconf, dnsmasq & networkmanager

I'm running resolvconf, dnsmasq and interfaces&connections are managed by NetworkManager (nm). dnsmasq is supposed to cache dns entries, and use upstream servers configured via DHCP and manually. ...
3
votes
1answer
219 views

Network manager misses my network card

I've got the following network card: Bus 001 Device 002: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard It's accessable through ip tool and properly works with dhcpcd (3rd entry in the ...
3
votes
1answer
993 views

NetworkManager corrupted ipv6 dns settings

Today, I started having most web sites failing to load in browsers. Checking my network settings, I discovered those strange settings in ipv6 tab: Switching back to my usual dns for ipv6 (Google's ...
3
votes
0answers
2k views

Why can't Fedora start my (hard wired) network?

FYI: I've asked this on Superuser but not luck so I'm trying here. I'm not sure which it is more relevant to. I have a hard-wired Ethernet card/cable to my hub. I start Fedora 23 but there's no ...
3
votes
0answers
669 views

Changing Fedora's builtin Hotspot mode to 5GHz

I am using Fedora 22 and in the WiFi settings, I can enable a HotSpot. I found the /etc/NetworkManager/system-connections/Hotspot file, but I do not know what I can do there. I want the hotspot to ...
3
votes
0answers
680 views

Prefer wired over wireless for local subnet using NetworkManager

My wireless network is bridged to my wired network, so both have the same subnet. How do I tell NetworkManager to give the local subnet route on the wireless interface a higher metric than the route ...
3
votes
0answers
766 views

Can I configure specified PEAP in network-manager

Here's the wpa_supplicant.conf file: ap_scan=1 network={ ssid="<SSID Name>" proto=WPA2 key_mgmt=WPA-EAP pairwise=CCMP group=CCMP eap=PEAP phase1="peaplabel=0" ...
3
votes
1answer
2k views

NetworkManager no longer auto-connects on login

I've configured nm-applet to run during X login, and I've connected to my home Wi-Fi network many times. Recently it no longer tries to connect to the network after logging in. In the connection's "...
3
votes
1answer
1k views

CentOS network connection breaks every 5 min

I installed CentOS 6.2 about a month ago and it worked fine. Two days ago I saw that the internet connection is broken, so I reconfigured it. I was able to use it but after a few minutes it broke ...
2
votes
0answers
1k views

Fedora 31 drops wifi connection after some time

I'm using Fedora 31 on my Notebook. Everything works well, except for Fedora dropping the wifi connection after a while, making it necessary to reconnect to the network. Every few minutes after ...
2
votes
0answers
27 views

tp-link device not listed on nmcli

I've installed a tp-link usb device, in addition to the built-in wifi device, and I can see it on ifconfig after running sudo ifconfig ra0 up: ra0 Link encap:Ethernet HWaddr 50:3e:aa:ac:18:3f ...
2
votes
0answers
46 views

what's the difference between executing linux commands by ssh tool and adding commands to my program?

I configure both a static IP and dhcp on a NIC of Orangepi Zero by creating two connections in NetworkManager-connections. The installed system is armbian Ubuntu. In my program, I use the popen ...
2
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0answers
58 views

How to avoid extra routes from Network Manager?

On my home wireless network, network-manager adds extra routes compared to wpa_supplicant, which causes IPv6 hosts on the local network to be unreachable. Route table is shown below, note that network-...
2
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0answers
36 views

Wired Connection Fails, but WIFI is fine

Installed Debian yesterday and have had a pleasant experience except for my inability to get the Wired Connection working. I have a Wireless connection that connects and allows me to access Internet. ...
2
votes
1answer
44 views

What is creating these br-##### bridges?

What is creating these bridges (as visible in the NetworkManager) upon start? I have to delete them all every time in order for internet connectivity on a certain WiFi point to work, and as far as I ...
2
votes
0answers
3k views

Bring interface up even if link is down (no carrier)

My system is a Dell PowerEdge T140, running Ubuntu 18.04.2. I have a service that depends on the host's primary IP address, and that service fails to start if that address is not configured on the ...
2
votes
0answers
915 views

Connecting to WPA2/PEAP/MSCHAPv2 enterprise wifi networks

I am using an Arch Linux setup and am having trouble connecting to my school's wifi using networkmanager. I'm using the nmcli connection editor to set up my system connection. This is what my network ...
2
votes
0answers
194 views

Network-/ModemManager doesn't unlock SIM automatically

I use nmcli to set up a gsm connection in Ubuntu 16.04. Configuring this connection I set the gsm.pin property and auto-reconnect is enabled. When nmcli tries to connect it says that the modem is in ...
2
votes
0answers
140 views

Have to restart dhclient on enterprise network each time lease expires

I connect to a WPA2 enterprise network on Debian Jessie using Network Manager on dhclient. It works fine until the lease expires: Feb 04 15:52:31 arjun-thinkpad NetworkManager[26926]: <info> [...
2
votes
0answers
861 views

NetworkManager fails to connect with a cloned MAC address

I need to spoof a specific MAC address to be able to connect to the local ethernet. So I filled in the "Cloned MAC address" field in nm-connection-editor. After this, nm-applet shows a spinning icon ...
2
votes
0answers
91 views

Use DHCP-provided DNS or not based on connected network

My current networking setup (on Arch Linux) involves: stubby to resolve DNS requests with DNS-over-TLS. dnsmasq to cache DNS queries (and nothing else). openresolv to manage resolv.conf. ...
2
votes
0answers
662 views

NetworkManager VPN timeout

I have a strange issue with NetworkManager. My Linux box is an openSUSE LEAP 15. Network is provided by NetworkManager. The local ethernet connection has static configuration. And I have a VPN ...
2
votes
0answers
149 views

Not able to see wifi interface in ifconfig in centOS 6.5

I have added a wifi adapter to my CentOS 6.5 box but I am not able to see it in ifconfig output. Wireless adapter in dmesg output [root@testldap log]# dmesg | grep -i netgear usb 1-1: Product: ...
2
votes
0answers
517 views

split json file based on number of objects

I have a file that contains objects. The object starts with a { and ends with }. There are other internal brackets { } in some items like chain but they have indentation. The file I have is very large ...
2
votes
0answers
82 views

Debug friendly alternative to NetworkManager?

NetworkManager is great, when it works. When it fails I find it completely impossible to debug. Is there an alternative that is similarly easy to use, but which also shows you what is being run, so ...
2
votes
1answer
1k views

Missing openvpn routes with network manager

I'm trying to setup a VPN using network manager. When I run openvpn manually with my config, it works fine (sudo openvpn --config MyVPN.ovpn). Then when I print the routes (sudo route -n), it gives me:...
2
votes
0answers
322 views

Does Networkmanager support encrypted private keys?

I am trying to improve wifi security and recently changed to wpa2 enterprise using eap-ttls. Works fine so far, but I do not like the idea of all passwords (hashed or not) sitting on my radius server. ...
2
votes
1answer
766 views

Unable to connect to USB 3G Mobile Broadband

I am using Arch Linux, Trying to connect to internet using my D-Link mobilebroadband. ( using NetworkManager and ModemManager ) I configured it using GUI ( setting APN/Network -Vodafone etc.. ) But ...
2
votes
0answers
486 views

Use nmcli without X interface

I have a xubuntu virtual machine, when it's booted to xfce4, I connect to it via SSH. When I try to use nmcli, it complains: %> nmcli con up myvpn Error: Connection activation failed: Not ...
2
votes
0answers
633 views

veth pair from a single physical nic

I'm trying to setup an all-in-one Openstack kolla on a CentOS-7 with a single physical NIC, but I cannot manage to setup the network for VMs to get ips on the same LAN as the host. According to the ...
2
votes
0answers
424 views

run gvfs-mount as user in a script owned by root for networkmanager dispatcher

I'm trying to create a script to auto mount using gvfs-mount for NetworkManager dispatcher. The dispatcher requires the script to be owned by root. Running gvfs-mount smb://path/ works in terminal as ...
2
votes
0answers
828 views

Wifi interface recognized as ethernet

I am having trouble setting up my wifi configuration persistently. I have tried both netctl and NetworkManager and both only work after manual setup. What I find especially weird is that ip link ...
2
votes
1answer
750 views

unable to add IPSec IKEv2 profile on Fedora 22/23

it should be something really simple, but I cannot add IPSec IKEv2 profile in Network Manager settings, Add button is greyed out. Does anyone know?
2
votes
0answers
819 views

Manually configure Link-Local IPV6 regardless of ISP

The long and short of it is we have a system with a single ethernet port and we need to provide both an IPV4 connection (that can be completely incontrol of the user and varies per system) and we want ...
2
votes
0answers
684 views

How can I ensure DNS resolved common URL-s on Linux Mint and DNSmasq

I am experiencing a problem with Linux Mint 17.2. Some experiments demonstrated there's some issue with resolving URL-s. update 2015-12-02: Perhaps some one who understands this problem can comment ...
2
votes
0answers
90 views

How to kill all vpns on switch user Mint 17.2

I'm using mint 17.2 cinnamon. I'm not particular about the method, just want it to stop all vpn connections (openvpn, listed in network manager) when I switch users or logout. nmcli doesn't provide ...
2
votes
1answer
83 views

Error on DSL Connection

I tried to DSL connection on my laptop. I use Debian mint. I used username and password too. But when I click on the icon it shows "Unable to connect DSL with error "(1) Creating object for path '/...
2
votes
0answers
685 views

wifi - maximum number of pending replies per connection has been reached

Sometimes, my wifi internet connection gets interrupted which i can see when the leds in the wifi modem goes off. Now, when the connection resumes (i mean, the green led starts glowing in the modem),...
2
votes
0answers
4k views

OpenVPN client config: Route command fails

I want to connect to my company's VPN server, so I can access work resources. I'm running Ubuntu Gnome 15.04, and I've been given an ovpn-file. I installed OpenVPN and run sudo openvpn --config ~/...
2
votes
0answers
888 views

How to trigger dhcp4-change using nmcli?

I am working on a networking script which will do certain things, e.g., interface up/down/dhcp4-change events happen. I also need to generate these events through Network manager, not through ...

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