Questions tagged [networkmanager]

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Windows 10 Network Credentials not working

So, although connecting to our servers works from all other pc, including a VM that is running on my machine, for some reason my credentials won't work when i try to open a folder on our server. I ...
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NetworkManager defined HotSpot, can't connect from Android phone

The problem is quite simple: I create a hotspot in a Linux machine: nmcli dev wifi hotspot con-name "John" I show the password (and QR code) with: nmcli d w s (abbreviated from nmcli dev ...
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NetworkManager treat wireless network as wired for softap connection sharing

I'm trying to do same-interface AP+STA connection sharing with NetworkManager. It appears that NetworkManager doesn't support that at the moment which is OK. I can tell NetworkManager not to touch ...
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network-manager connection on eth0 is active even when there is no cable plugged to it

I have a device with wifi and wired network. there is one nmcli connection for each network and connection on eth0 has priority over wlan0. the problem is that even there is no cable plugged to eth0 ...
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AWUS036ACH USB Wifi Adapter shows twice in NetworkManager Applet (XFCE, Debian 11)

I am running Debian 11 XFCE, fresh install on an HP Pavilion 14 laptop. My inbuilt wifi and ethernet work great. However, whenever I plug in my AWUS036ACH USB adapter, it is recognized and shows up in ...
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NetworkManager upgrade from 1.34 to 1.36 breaks WireGuard configuration "No VPN gateway address received"

This morning I have upgraded networkmanager and libnm from 1.34 to 1.36. Unfortunately my so far working WireGuard VPN configuration shows now: Feb 25 12:11:50 methadon NetworkManager[642]: <warn&...
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Network manager adds route to vpn host across local network default host

I have a wonderful behavior of Network Manager in debian 10,11 xubuntu 20.04.3 when I trying to connect vpn resource by openvpn or l2tp over ipsec. If I connect openvpn directly across terminal ...
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Network Manager Allowing Multiple Network Connections

I am using NetworkManager with Ubuntu 20.04. I am trying to plug in my Remarkable Tablet which acts like a USB ethernet connection when plugged in with a USB cable. From here I can ssh into the tablet....
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How to determine cause of random network connection loss while network manager says it is connected

I have a home server running Oracle Linux 8. It is used as a web server, gaming network backbone and a few other things, so connectivity up-time is a very important thing. Up until about 3 weeks to a ...
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Why does NetworkManger pop up nmcheck.org even when i have correctly set up the configuration with uri set on Fedora 35?

I have been facing problem where a default browser window pops up saying nmcheck.gnome.org and then immediately closes. Also the gnome wifi icon at the top right has a question mark on it. I know that ...
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Network-manager: store secrets for automatic openvpn connection

Because I don't have access to a gui, I have added my openvpn password to the network-manager connection using: $ sudo nmcli con mod CONNAME vpn.secrets "password=MYPASS" I can confirm the ...
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NetworkManager unresponsive with wireguard VPN-Proxy setup

I've got a problem with NetworkManager hanging while trying to interact with it. This only happens if my wireguard vpn profile (in NM) is active, not all the time. Its a proxy VPN that provides the ...
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Linux Mint 19.1 won't connect to VPN using OpenVPN

Up until last night, every time I signed into my workplace VPN from home, I was prompted for the private key password and a sort of "local" password to unlock my certs. This time, I was just ...
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The bridge configuration of my CentOS 7 machine failed, and the machine connected to the bridge cannot access the Internet

There are two network cards on my server: enp7s0 and enp9s0. Their configuration is as follows: enp7s0: file: /etc/sysconfig/network-scripts/ifcfg-enp7s0 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=...
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Linux - Port forwarding to shared connection

I have set up my computer (PC1) to share its wifi connection to another computer (PC2) via ethernet like this. How can I set up port forwarding such that everything PC1 receives on port X is forwarded ...
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Prevent networkmanager to disable an interface if dhcp timeout when mixed dhcp and fixe ip configuration

I need to find a way for a computer to have both a fixed ip address AND have be a dhcp client on the same interface. So far it works great, I am using Debian 11 and NetworkManager. The problem, is ...
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IP forwarding between 2 NICs on the same computer with two static IPs

I'm trying to connect between 3 devices named macOS "M1", Ubuntu 18.04 "Nano" and "Xavier" where the Nano acting as a gateway between the M1 and Xavier. ...
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Linux device using network manager fails to connect to the network manager AP with a hidden SSID

I created an access point using the network manager with the hidden SSID and it works fine if I want to use it with my android phone, but then trying to connect to the access point using Linux device (...
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Which is the correct key to modify to set a wireless password via nmcli

A number of answers describe how to modify properties of a wireless connection via nmcli (for example https://unix.stackexchange.com/q/316482/16821). However, I don't know how to determine which ...
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How to create a 802.11ac access point with NetworkManager?

I'm creating a WiFi access point on the 5GHz band with the NetworkManager on Ubuntu 20.04. My WiFi chipset is an Intel AX200. I use the following command to create the acces point: sudo nmcli dev wifi ...
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RFKILL: Cannot bring my wifi interface UP

So today when I turned on my thinkpad (T420) for some strange reason, NetworkManager wasn't working. Upon further inspection I found that the wifi interface wasn't up, which is odd considering ...
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Host with identical ips and subnet mask different

Two host with following IP’s. How they will communicate.? With and without a router. Case a. 1.1.1.1/24 & 1.1.1.2/24 Case b. 1.1.1.1/24 & 1.1.1.2/32 In case a, they will communicate via switch ...
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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-...
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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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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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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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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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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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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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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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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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