Questions tagged [networkmanager]

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Bonding two wifi interfaces using NetworkManager

I've got two different adapters connecting to the same Network with different speeds. I aim to join their bandwidth since my ISP's bandwidth is far more than what they both receive. I use ...
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32 views

Wifi mesh in combination with NetworkManager on linux

I need help with wifi mesh on a linux machine. According to iw phy ph0 info the combination of AP and mesh point shall be possible on my device: valid interface combinations: *...
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15 views

Cellular modem doesn't recover after system suspend

On a yocto system with a 4.9.88 kernel, NetworkManager v1.14.4 and ModemManager v1.11.0, our modem doesn't come back after system suspend. System is suspended via systemctl suspend. For network ...
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16 views

NetworkManager - changing global DNS server

So, to start off, this question isn't about the per-connection DNS setting NetworkManager has - this has many answered questions already and is well documented. What I'm asking about is how to change ...
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26 views

Automate VPN startup in Kali Linux

I am new in Kali linux, I want to automate my hourly work :D, change my MAC and IP address after rebooting my PC. I done Mac well, the bad news is about VPN. That's my code in 'Bash' after rebooting, ...
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1answer
49 views

Can no longer connect to VPN

I have had a working VPN connection for the last several years that mysteriously stopped working yesterday. nmcli con up id <myconnection> Error: Connection activation failed: Unknown reason ...
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18 views

How do I get NetworkManager to detect internet in Arch Linux?

I had just made a new installation of Arch Linux, and I've run into some problems regarding connection to the internet. I made this installation under iwctl in the initial stages, and wifi-menu in the ...
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40 views

NetworkManager 5GHz Hotspot DFS channels 802.11h

I have using hostapd before to create an 5GHz Access Point that uses an DFS channel. For this I only needed to activate ieee80211h, ieee80211d and set the country_code to DE. Then the channels 100 and ...
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1answer
37 views

Internet “Lags” when using DHCP

OS: Archlinux Relevant Package: NetworkManager TLDW/TLDR: When using DHCP it takes about 16 seconds to complete 3 pings to www.google.com. But when using a Static IP it takes about 2 seconds. Recently ...
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18 views

how to add L2 static routes using network manager

I have interface (vlan) which has no ip (ipv4.method=disabled) and I want to add static routes: 10.0.0.0/32 via bond0.xxx It is possible via network manager?
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24 views

How to stop NetworkManager from adding connections on boot?

NetworkManager has me struggeling with an easy task, setting a static network configuration. Disabling NM does keep the configuration stable and working, but I really want to know what is happening ...
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37 views

Ubuntu 20.04 / FRITZ!Box 7490 / NetworkManager refuses to establish WiFi connection

I am running Ubuntu 20.04.1 on a ThinkPad T400. Every time I start the computer and it tries to connect to my router (AVM FRITZ!Box 7490) then the connection fails to establish multiple times. After ...
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31 views

Network devices manipulation when making a call via Microsoft Teams app

I am having an issue with the installation of the Microsoft Teams app on my work notebook Linux mint 19.3 Cinnamon (5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 ...
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16 views

is it possible to use interface bonding to implement WAN failover between a 3G mobile and an Ethernet connections

Actually, I'm using NetworkManager configuration file's connectivity section to implement WAN (internet) failover between a NIC Ethernet link and a 3G connection (thanks to the Modem Manager service). ...
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13 views

xrdp - WiFi auth pop up on wrong screen

OS: raspbian buster PKG:   network-manager   network-manager-gnome   gnome-keyring CONFIG:   /etc/NetworkManager/NetworkManager.conf -> auth-polkit=false   /etc/xdg/autostart/nm-applet.desktop -...
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1answer
147 views

the ECDSA host key for 'xx' differs from the key for the IP address 'xx

I get this warning often because a computer is using DHCP and is getting a different IP than before. I know how to deal with it on a case-by-case base but would like to understand the appropriate ...
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1answer
249 views

How to automatically enable wifi 4addr (WDS) mode before connecting to specific SSID or network?

I have a laptop on which I have setup a bridge interface between the Ethernet and WiFi devices in order to connect non-WiFi devices to the network before they go into their final, wired, position. I ...
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5 views

Opensuse Leap 15.2 networkmanager can ping but no chrome access

I am running NetworkManager on wired connection on Leap 15.2. I can ping to google.com (ping -c1 google.com) but when I open Chrome I cannot access any website (e.g. google.com). In resolv.conf, I ...
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14 views

GSM connection fails - NetworkManager

I am trying to achieve the gsm connection through my single board computer. I think I set up everything. Below is the output of the modem info: -------------------------------- General | ...
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0answers
23 views

Avoiding autoconnection to “free” WiFi networks

I'm using Linux with NetworkManager. I want to allow auto-connection to WiFi networks only if the networks want a password. I want to avoid auto-connection to "free" networks, but manually ...
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15 views

Does it make sense to use mmcli and gammu for sending sms or should I choose one?

Does it make sense to use mmcli and gammu for sending sms or should I choose one? can both work on the same host?
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30 views

Raspbian - Network Manager maps modem to an ehternet and not PPP interface

I have a very interesting problem: I'm trying to achieve cellular connectivity on RPi4, with a modem (Telit LE910C4-EU). For this purpose I'm using modem manager & network manager: apt-get update ...
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33 views

Wi-Fi stops working intermittently but connection stays

I am using a Thinkpad X1 Carbon Gen 7 running Arch Linux. To connect to Wi-Fi, I have tried both NetworkManager and netctl, but Wi-Fi repeatedly stops working at random times. When it stops working, ...
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1answer
42 views

How to make NetworkManager/nmcli show only non-default settings

I want to check the settings of a specific NetworkManager connection "myconn". I can do this: nmcli connection show myconn Then it shows me several dozens of setting values which most of ...
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21 views

Network Manager Ignores Dhclient Hostname Setting

I have long noticed that Network Manager sets its hostname in dhcp using hostnamed. The output of journalctl -u NetworkManager will always show the current hostname as hostname for Nm. I noticed this ...
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0answers
39 views

Internet not working after enabling Power on by PCI-E

I tried to setup wake on lan for my Ubuntu 19.04 PC. According to the docs I should enable "Power on PCI-E" option in a BIOS. Which i did. Set up ethetool and so on. After some time I ...
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1answer
35 views

How is default routing interface determined

TLDR: default routing interface is somehow determined by internet availability on one of the physical interfaces, the question is how exactly. Setup: embedded Linux ARM board with two network ...
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32 views

NetworkManager wired connection will not autoconnect. connection.autoconnect is set to yes

I am having odd issue. Some details first. The issue is occuring on a VM with bridged networking, in addition the connection in question is automatically connectiong to a VPN. There is no issues on ...
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2answers
73 views

How can hostname be controlled reliably in Linux?

I am attempting to ascertain and control actual hostname during dhcp AP association. Changes to the /etc/hostname file break sudo. An inspection of journalctl -u NetworkManager shows Network Manager ...
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87 views

Need to restart PC for NetworkManager to connect to LTE modem

I am experiencing quite a strange behavior when trying to set up LTE connection via network manager and mc7455 usb modem. On first boot it just hangs: > nmcli cdc-wdm0: connecting (prepare) to lte ...
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23 views

using NetworkManager for wireless connection along systemd-networkd for wired ones?

As title, is that possible? At least it's feasible because it's what i come up with on my notebook but i can't understand exactly how it works. I run ubuntu, uninstalled netplan and both networkd and ...
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136 views

How to generate a VPN config file (client-side)

I have VPN-access to a server to which I can connect via sudo openconnect <domain>. However, I would like to permanently add the VPN to NetworkManager without using a GUI, so importing a .ovpn ...
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461 views

nmcli add L2TP IPSEC CLIENT CONNECTION

I have the next connection file for connecting to a l2tp ipsec server from the command line, but always the response is: "Error: Connection activation failed: no valid VPN secrets." Does anyone ...
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23 views

How can I prevent NetworkManager from reassigning my interfaces in Lubuntu?

Occasionally, whenever I boot my Lubuntu 16 (Ubuntu 16 + LXDE) computer, I will find that my typical interfaces of Wired connection 1 and Wired connection 2 are no longer connected to the Ethernet ...
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22 views

Problems connecting to the Internet with NetworkManager

I'm using ArchLinux with Network Manager to connect to the internet through wifi, but sometimes, even if it is still connected to the wifi, I can't reach websites. I searched a lot on the net to see ...
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67 views

NetworkManager has stopped working

Whenever I load Windows 7, the window "NetworkManager has stopped working" pops up. Here are the problem details... Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: ...
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3k views

QEMu / KVM: error: Unable to add bridge tap0 port vnet0: Operation not supported

In order to fully understand how the networking part works inside QEMU/KVM software virtualization environment, I decided to try to manually set up a the networking part, more or less simulating what ...
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2answers
2k views

dnsmasq listen on 0.0.0.0 when started by NetworkManager

Is it possible to configure NetworkManager or dnsmasq to listen on 0.0.0.0 when dnsmasq is started by NetworkManager process ? I have noticed whatever I put in /etc/NetworkManager/dnsmasq.d/00-...
1
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1answer
114 views

DHCP connection with an always-available additional static IP via NetworkManager

I'd want an equivalent of the following /etc/network/interfaces config, but done via NetworkManager (or at least giving me chance to control eth0 connections via nm-applet and possibly choose a ...
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0answers
153 views

NetworkManager not listing wifi

A few days ago my computer(Arch Linux + Gnome) suddenly couldn't connect to the network, NetworkManager couldn't scan any wifi connection. systemctl status wpa_supplicant output ioctl[SIOCSIWENCODEEXT]...
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1answer
169 views

Access web app on Linux server from laptop via ethernet cable, no router

I have a web app on an Ubuntu 18.04 Linux web server, and I simply want to access it from a web browser on my laptop, which is connected to the server directly via ethernet cable. How can I use ...
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1answer
347 views

Linux Network device drops and restarts in a loop

I have a decently unique stack I am working through, so any diagnostic/debugging strategies are greatly welcome. Setup: Ubuntu 18.04 desktop, PCIe network card with 2 ports. Two Ethernet camera ...
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90 views

How to configure and connect a IEEE 802.1X EAP-TLS wireless network with ConnMan on Debian 10?

I want to connect with ConnMan on a Debian 10 Mate to a hidden wireless network that uses IEEE 802.1X EAP-TLS. I know his SSID. I have a .p12 extension certificate. I can't set the GUI. So I created ...
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220 views

NetworkManager disabled Wi-Fi connection

I've experienced the following issue with NetworkManager. All of a sudden, my wifi connection was lost and NetworkManager Applet (version 1.8.22) unchecked "Enable Wi-Fi" option. I had to manually ...
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0answers
25 views

What is the mechanism that sets network control policy for users and groups locally and remotely?

tl;dr I think polkit is the answer but don't understand where the local setting is stored vs. the remote setting. Am I right? If not, what is the correct response. For the record, I'm working with ...
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80 views

NetworkManager vpn basic authentication issue on centos7

I'm using gui vpn(cisco) on centos7 by NetworkManager package, after an OS update I faced an issue when try to connect vpn,here is log: Server 'nl.cisadd2.com' requested Basic authentication which is ...
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2answers
2k views

Wifi errors with Network-Manager on KDE Neon

I have a problem with Network Manager when i try to connect it with my hotspot a notification says : no secrets were provided so i have to make my hotspot open in order to connect it, but i face ...
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38 views

disable a specific network or wifi interface conveniently

I have a laptop with an unfortunately weak wifi card. For that reason, I recently bought a USB dongle with an external antenna. Ubuntu LTS with the xfce desktop is used. The internal, fixed wifi (...
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2answers
470 views

Trouble getting a data connection on a Telit LEU910C1-EU modem

I'm trying to connect a Telit LEU910C1-EU modem to get a data connection (over LTE). The module is used via a CM3, the modem itself is plugged into a usb hub. While tinkering around I got the ...
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92 views

Routing doesn't work in case of 'autoconnect' network manager connections

I have a computer with wifi adapter (interface wlp3s0) which can work in access point mode. Using network-manager I've created wifi access point with static addresses: nmcli c a type wifi ifname ...