All Questions
Tagged with network-manager 20.04
178
questions
1
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134
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NETPLAN "DESTINATION HOST UNREACHABLE" Ubuntu 20.04.6 desktop
I'm quite new to Ubuntu and I'm trying to configure my netplan file.
when I set the configuration in my /etc/netplan/01.-network-manager.yaml there seems to be an issue after i have apply the setting (...
1
vote
0
answers
114
views
How to add 500 IP address (Range of IP) in Network File for single interface
Ubuntu 20.04.4 LTS was what I was using.
How can a single interface be configured with a 500 IP address ( Ranges of IP address) ?
For example
I need to configure 101.23.151.0/24 and 101.24.152.0/24
...
- 11
0
votes
0
answers
115
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Connect to Ethernet (wired connection) before/without local user login in Ubuntu 20.04
I frequently remotely connect to a Ubuntu 20.04 desktop and need it to connect to internet at all time. The problem is that, after it is reboot and before logging in a local user, the Ethernet is not ...
2
votes
0
answers
460
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Observing network change event in linux application
I have an application where I wanted to get notified if there is any network change that has occured. I have found a bunch of solution like
using NetworkManager or systemd-network service (which I do ...
- 365
0
votes
0
answers
80
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Network connection error - unreachable with one user
I have a desktop with Ubuntu 20.04 and it has the following problem. When I try to connect to the wired network it works with one user and with another, despite connecting, if I try to access the ...
0
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0
answers
147
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No IPv6 link-local address assigned to ethernet adapter, but is working on Wi-Fi
I have a fresh Ubuntu 20.04 install on a system with 2 interfaces - Ethernet (enp2s0) and Wi-Fi (wlp3s0).
On the enp2s0 interface I set a static IPv4 address and wlp3s0 is using DHCP for Internet ...
- 937
0
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0
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147
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Network unreachable after Ubuntu VM movement
Setup: I am using VirtualBox 6.1.40 r154048 (Qt5.6.2). Windows 11 host OS. VM is Ubuntu 22.04.1. VM is using HostOnly Network adaptor.
Initial Status: Ping was working from Windows to a VM and vice-...
- 148
0
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0
answers
72
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wifi connected but not working after sleep/suspend
I have recently upgraded to Ubuntu 20.04 and noticed that after sleeping/suspend the wifi doesn't work. The connection is established to the wifi but webpages are just not loaded. If I restart the ...
- 697
-1
votes
1
answer
225
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Ubuntu 20.04-desktop wired connected but unable to access the Internet
As mentioned in the title, my machine is Ubuntu 20.04 desktop, and the wired network is connected, but I can only ping the local area network and cannot access the internet:
There is no problem with ...
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3
votes
3
answers
410
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2 Ubuntu servers, A is connected to B via ethernet. server B has 2 NIC, one of is connected to the internet. A cannot see B or the internet
I have one ubuntu server running 20.04 with 2 NIC – one connected to the internet gateway and the other connected to another ubuntu server running 22.04. I cannot get the computer running 22.04 to ...
0
votes
0
answers
214
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How to use vpn in shared bridge connection
Laptop is connected to wifi. Laptop also provide internet to another machine (M1) with ethernet port using bridge connection. Now when i use VPN in laptop, it works fine but the vpn is not available ...
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0
votes
0
answers
53
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ubuntu 20.04 wifi connection is bad and not stable
I know that there are questions about this but I tried all those answers but my problem is not disappeared. The problem is, when I go to the additional drivers, there I can see the wifi device Realtek ...
- 1
0
votes
0
answers
85
views
WiFi frequently disconnected only on my laptop (Ubuntu 20.04)
I am facing this problem for a while, and I tried many solutions that have been provided online like:
set wifi.powersave to equal 2.
disable the ipv6.
access this file: sudo cat /etc/NetworkManager/...
0
votes
1
answer
468
views
How do I set password for Hotspot?
I have an active wired LAN connection and want to share it via my wireless radio, requiring a password to connect. This should be super easy, right?
I am running Kubuntu 20.04.
When I go into the ...
- 588
0
votes
0
answers
80
views
20.04 client vpn connects successfully but times out when connecting to vpn required website
I have an OpenVPN .conf file to connect to a company vpn. I need to be connected to this VPN so that I can access domains that are not searchable by default DNS.
After successfully connecting to the ...
0
votes
0
answers
499
views
Activation of network failed with my VPN
I have a problem with my vpn when I want to activate it, it was working fine until today.
I'm on Ubuntu 20.04 and my vpn is an L2TP vpn.
I reinstalled the VPN several times but impossible I always ...
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1
vote
0
answers
104
views
Use a DNS server to resolve company subdomains and another DNS for other
This might be an easy thing, but I couldn't find a solution for it.
We have a Widnows DNS server in company which resolves:
if the queried name is a subdomain of mycompany.net (such as nexus....
- 151
4
votes
1
answer
2k
views
Ubuntu 20.04 - how can I stop waiting for NetworkManager.service during startup?
I prefer network to setup itself when I start computer, but I prefer to boot earlier and have network connect while I type my password and so on.
Sadly, according to systemd-analyze critical-chain I ...
- 1,122
-1
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1
answer
8k
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Ubuntu 20 & 22 connect to local network but no internet
I was having this issue with my install of 20.04 and in an attempt to fix it I upgraded to 22.04. Both systems exhibited the same behavior I'll detail here.
The machine is able to connect to my local ...
- 137
1
vote
1
answer
531
views
l2tp vpn Ubuntu 22.04
I've gotten a new laptop and upgraded to 22.04, but I can no longer seem to get the l2tp/ip-sec VPN required for my job working anymore. I'm using the Gnome NetworkManager to configure this (just like ...
- 13
0
votes
1
answer
2k
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Wifi Unavaliable on redmibook 14 ryzen edition
Thats what I have after trying a lot of guides to find a solution for my problem
Firstly I was having network disabled and also unavaliable state in nmcli dev status
and now I dont even have my wlp1s0....
- 1
0
votes
0
answers
618
views
Constant need to restart internet connection
I have to constantly restart NetworkManager (or run sudo modprobe -r iwlwifi && sudo modprobe iwlwifi - effects are indistinguishable) on both of my Ubuntu devices to deal with constant sudden ...
- 101
1
vote
1
answer
1k
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Intel WiFi 6 AX200 not working on 22.04 LTS
I am currently on Ubuntu 22.04 LTS and Intel WiFi 6 AX200 is installed on my laptop. Many a times the WiFi Settings Panel says unavailable and also says "No Wi-Fi Adapter Found". Sometimes ...
- 111
0
votes
0
answers
742
views
network disabled after installing ubuntu server on virtual machine
I installed ubuntu server downloaded from here Then I found network is disabled:
Besides, I found the network-manager was missing after I tried to restart the network-manager according this post. ...
- 121
0
votes
1
answer
1k
views
Wifi adapter not working in Ubuntu 20.04 LTS
I just bought a wifi adapter TP-Link AC 600 and installed this driver from github repository https://github.com/aircrack-ng/rtl8812au.git.
but when I tried to use in my Ubuntu 20.04 LTS NetworkManager ...
- 3
0
votes
0
answers
54
views
Wifi adapter is unavailable in Ubuntu 20.04 LTS [duplicate]
I just bought a wifi adapter TP-Link AC 600 and installed those kernel modules
$ dkms status
8812au, 5.6.4.2_35491.20191025, 5.4.0-122-generic, x86_64: installed
broadcom-sta, 6.30.223.271, 5.4.0-122-...
- 3
0
votes
1
answer
4k
views
Temporary failure in (DNS) Name Resolution / 20.04
"Temporary failure in (DNS) Name Resolution"
Background:
I work in healthcare security with approximately ~125 servers across a dozen clients across the US
The appliances are both physical ...
- 31
0
votes
0
answers
144
views
Wi-Fi adapter not found. Wireless doesn't work: RTL8822CE Ubuntu 20.04
I faced the problem after an issues with sudoers.so file.
NetworkManager logs:
dkms status tree:
kernel version:
For no reason lsmod | grep rtw didn't show anything in the console.
Also nmcli ...
0
votes
1
answer
2k
views
Can't get Ubuntu to use two NICs at the same time on different networks
I am running Ubuntu 20.04.4 LTS and am having a hard time getting both NICs to work at the same time on different networks.
I have network 1 that connects to the internet and network 2 that connects ...
1
vote
1
answer
200
views
How to set up routing between two networks?
How to set up routing between two networks?
Network #1
ip-10.10.10.1
mask-255.255.255.255
ip-10.10.10.2
mask-255.255.255.255
Network #2
ip-10.10.0.0
mask-255.255.255.0
gw-10.10.0.10
enter image ...
- 31
1
vote
2
answers
2k
views
/etc/resolve.conf corrupted!
I've edited /etc/resolve.conf on my ubuntu 20.04 by mistake and it corrupted as below :
root@ubnt20srv-test-01:/etc# cat resolv.conf
cat: resolv.conf: No such file or directory
but the file exist:
...
- 11
0
votes
1
answer
830
views
wifi network connection slow and disconnecting randomly in Ubuntu 20.04
I am complete beginner not much knowledge about Linux it would nice if anyone would help i am trying to fix it for long. This is my first post if there are any mistakes please forgive me.Sorry for ...
3
votes
2
answers
6k
views
Ubuntu 20.04 - wireless network showing DISABLED
My laptop's WiFi has stopped working after an update. I can turn it ON/OFF from settings but it has subtitle "unavailable" and a loader at visible networks. I have tried almost everything ...
- 131
0
votes
0
answers
1k
views
Thunderbolt peer to peer networking
Hoping somebody has an idea to help me move forward. I am trying to connect two hosts with a Thunderbolt Cable as Networking devices and out of ideas.
If I run the Ubuntu Live CD in Desktop mode it ...
- 1
0
votes
0
answers
78
views
Ubuntu 20.04 wifi not showing available networks
All of a sudden, this morning I don't have wifi on my laptop. I have a Thinkpad E14.
I don't know what caused this. The wifi is working, I can turn it on and off, but it searches for available ...
- 153
0
votes
0
answers
180
views
Uninstalled Ubuntu desktop and network manager
While attempting to fix an issue I was having with my internet connection, I uninstalled network manager. After this I couldn’t reinstall it so I looked on a forum online and it said to uninstall and ...
2
votes
0
answers
2k
views
"Activation of network connection failed." Always Shows Up
I've setup a print server in our office using Ubuntu 20.04 LTS and successfully setup CUPS o be available over the network to all devices.
The problem is, every time I'm trying to connect to our ...
- 21
0
votes
0
answers
201
views
Force network interface with nmcli?
I want to connect to a specific BSSID via nmcli.
I am using the command:
nmcli d wifi connect xx:xx:xx:xx:xx:01
While it kinda works, it wants to force connection via wlan0 network interface.
Is ...
0
votes
1
answer
661
views
L2TP connection not working with ubuntu 20.04
At some point (didn't catch exactly when) My L2TP VPN stopped working on Ubuntu 20.04.
Here is the journactl output
apr 07 19:14:35 GS66 NetworkManager[312934]: Stopping strongSwan IPsec failed: ...
- 101
2
votes
1
answer
2k
views
Network Manager doesn't respect DHCP settings?
Had my Ubuntu 20.04 system running without any issues for months, but lately I had to start running sudo dhclient after every reboot, otherwise I am not able to connect to the internet.
I am fairly ...
- 151
4
votes
3
answers
5k
views
Auto-connect to hidden wifi network Ubuntu 20.04
Unable to automatically connect to hidden networks on Ubuntu 20.04. Set up 2 connections, 5G and 24G, both hidden networks. Connections connect manually fine. Tried setting BSSID as noted in another ...
- 73
0
votes
1
answer
3k
views
Determine DHCP lease source in Ubuntu 20.04 desktop
I have a host that's picking up a DHCP-assigned address that's wrong. Specifically, the MAC address is reserved to a particular address in the DHCP server, and instead of getting that address, ...
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2
votes
3
answers
9k
views
wifi not working after kernel update to 5.13.0-27-generic in Ubuntu 20.04
My laptop is HP PROBOOK with Ubuntu 20.04 installed. Last day my system kernel got updated to 5.13.0-27-generic and after that, I am not able to connect to wifi. The LAN connection is working fine but ...
- 123
1
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0
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859
views
20.04 Failed to Start Network error | fresh install
In short there is an issue with the network-online.target that seems to propagate an error with that can be seen on my Cockpit dashboard as well as during boot screen.
Attached is an screen shot of ...
1
vote
1
answer
3k
views
Cannot setup static IP with Raspberry Pi on Ubuntu 20.04 Desktop
I Ubuntu 20.04 Desktop OS running on Raspberry Pi 4. I have connected a printer to the Pi's ethernet port, and I have troubles in assigning a static IP using netplan. The problem is I cannot find the ...
- 143
0
votes
0
answers
258
views
Network manager not connecting to the internet
The issue I'm facing in Ubuntu 20.04 is that on my network panel it shows that my laptop is connected to a wired network, but there isn't any wired cable connected. With that being said, connecting to ...
0
votes
0
answers
70
views
Wired/Wirless network periodicly disconnects on Ubuntu 20.04, using wicd, and Network-Manager is disabled
Here is what I have tried so far:
first I stopped and disabled Network-Manager so it won't run again after reboot.
I installed WICD, and the problem was partially solved, no more unstable connection ...
0
votes
1
answer
234
views
Clean Ubuntu Desktop install, Network is unreachable
I am trying to install Ubuntu 20.04.3 LTS on a PC (Motherboard: PRO Z690-A DDR4(MS-7D25), BIOS E7D25IMS.100). First of all, it has a NVIDIA graphics card so for now I can only access a console (I need ...
- 341
1
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0
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59
views
Wireless menu not showing up / wifi hardware disabled
So, this is the second time I'm attempting to fix this problem-
Unfortunately I can't exactly remember what fix worked, so here I am again.
There's a couple of aspects of the issue
The intermittent/...
- 11
1
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0
answers
259
views
Edup Wifi driver 8821cu won't work after reboot. I need to unplug and plug the Wifi back in
I am using Edup Wifi adapter model number AC1661 on Ubuntu 20.04 with a kernel version 5.11.0.41 . I followed the instructions to download and install the driver from this link. The driver works when ...
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