All Questions
Tagged with networking ethernet
1,502
questions
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29
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Ethernet not working on Ubuntu through the main router
I set up a PC about a month ago and put Ubuntu on it to host a Minecraft server. It's been running excellently, but one night I opened my router's webpage and opened the port that Minecraft uses and ...
-1
votes
0
answers
39
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connecting two linux machines with ethernet cable error
I have two running machines That I want to communicate between with an ethernet cable.
machine A)
ethtool -i eth2
driver: nvethernet
version: 5.10.192-tegra
firmware-version:
expansion-rom-version:
...
-2
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0
answers
33
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Did I bloat my network devices? <nmcli d s | grep ^$IFNAME> Help
I'm a Linux noob so bear with me. I'm in the process of trying to figure out how to use my device as a WiFi extender using NetworkManager to create a persistent hotspot. I tried out multiple methods ...
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0
answers
148
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Network/DNS issues on 22.04.4
Im facing strange issue on virtual Ubuntu 22.04.4 server (VM). Few days ago it started to fail during basic network communication. I can ping to IP adresses but when I try ping by name it returns that ...
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-1
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0
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59
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WIFI and ethernet not working
I have asus laptop dual boot {Ubuntu 24.04 LTS/Windows 11}. Wifi is only connecting to a specific wifi, while ethernet is never been able to connected to.
scilab@ranzan:~$ sudo lshw -C network
*-...
0
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0
answers
22
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How to connect a open vSwitch interface to physical interface of another host?
I want to connect a switch interface to physical interface of another host. I am using Open vSwitch and ryu controller. I have one physical interface i.e., enp4s2 (IP address = 192.168.10.2/24) and ...
0
votes
0
answers
11
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Slow internet Download on my server using wired connection
Recently added a 25G network interface card (NIC), and am connected to my network through fibre but recently I am experiencing extremely slow download speed (5-254 kbps) on my 1Gbit/sec connection.
...
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0
answers
25
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Can't ping USRP N210 from Ubuntu VM ver 22.04.3
I'm trying to install and use GNURadio with USRP N210 on my windows 11 PC
I've installed Ubuntu ver 22.04.3 and GNURadio and both work except for recognizing the URSP
I have a point to point ethernet ...
0
votes
1
answer
68
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Disabling USB ethernet [duplicate]
I have a machine attached via USB-c and HD Port to a Dell monitor. This monitor is rather a nice one that allows for some KVM type functionality for machines attached to it. In that vain, it includes ...
- 109
1
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0
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236
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Ubuntu 24.04 server with NetworkManager does not configure eth0
I installed 24.04 server on a Raspberry Pi 4. The initial boot recognizes eth0. After I installed NetworkManager, I created a netplan configuration for eth0, wlan0, and wlan1. Upon reboot, eth0 was ...
- 11
0
votes
1
answer
315
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Slow speed Ethernet issue on Ubuntu 24.04
I recently changed my system to Ubuntu from Windows and I use my mobile and USB ethernet to connect, I used to get 500+ mbps on Windows by using USB tethering, but on Ubuntu 24.04 I am getting only 4 ...
- 1
-1
votes
1
answer
714
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USB Ethernet and normal ethernet is not working on ubuntu desktop 24.04
I previously had problems with normal ethernet on the laptop that im currently using and i assumed it was the hardware fault so i ordered a new adapter(that works on other devices) and tried using it ...
0
votes
1
answer
105
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How to create a bridge interface using cloned MAC address from ethernet?
EDIT: this is probably a user-error
Strangely, after I setup my OPNsense, and IP's DHCP reservation on my PC, the issue hasn't cropped up since.
While I was testing out the VLAN's by creating tagged ...
- 701
0
votes
0
answers
105
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Ethernet Disabled after software update reboot 5/4/2024 22.04.4 LTS -solved but WHY?
Symptoms: No Internet, Networking Icon at the top is gone, the settings gui shows no interfaces. ifconfig by itself shows the loopback interface and nothing else, but an ifconfig -a shows any and all ...
0
votes
1
answer
228
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Can't connect to internet via ethernet after upgrade to 24.04 (but can connect via wifi)
Upgraded my laptop to 24.04 today. I notice that if I have the laptop connected to ethernet with wifi turned off I can't get out to the internet. I am able to connect other machines on my internal ...
- 111
0
votes
1
answer
132
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Netplan doesn't set static IP after upgrade 20.04 -> 22.04
I'm trying to set the static IP of a network interface on a server that has just upgraded its distro from 20.04 to 22.04. Here is the netplan /etc/netplan/80_netplan_netcfg.yaml.
network:
version: 2
...
1
vote
2
answers
308
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Can I use wifi and ethernet at the same time?
I am planning to build an AirPlay receiver with Ubuntu.
The network configuration in my house is a bit complicated. My home network is in a "Double NAT" state, so other smartphones inside ...
- 11
-4
votes
1
answer
53
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I have Lenovo legion y540 and Ubuntu 20.04 on it , i have some probems because my wifi icon is disappear and i can't also run internet with ethernet
I was trying to download my gpu drivers because it isn't found after i finish with the same steps my friend try and done it need to reboot and when it open i can't find the wifi icon and also touch ...
- 1
0
votes
0
answers
17
views
Connected to WiFi but no access to internet
I was able to connect to the Internet until Sunday. I couldn't connect to the Internet on Monday. Nothing has changed on my PC. The only thing I did was sudo apt-get update but it didn't download too ...
- 121
0
votes
0
answers
68
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Ethernet problems on Ubuntu 22.04 LTS
Before anything, I'm using a somewhat old Asus laptop model (Q550LF). With that said here is the more detailed specs of the problem:
0
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0
answers
42
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Getting Internet from Layer 2 Bridge
I have 64-bit Ubuntu 23.10 Server running on a Raspberry Pi 4B. The Pi has a separate USB WiFi dongle (wlx00c0cab46ac3) that allows for 4addr mode, and I'd like to use this dongle to create a Layer 2 ...
- 123
1
vote
0
answers
190
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Ethernet not recognized on Ubuntu 22.04
I am running Ubuntu 22.04 (Windows 11 dual boot) using kernel verion 6.5.0-21-generic. I am running this version of the kernel because it appears that the intel wireless driver is incompatible with 6....
- 121
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0
answers
105
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Ubuntu Server LTS 22.04.4 has internet connection, but is not visible on router's device list
I have a fresh install of Ubuntu Server 22.04.4 LTS on an old mini-pc I got from work. I want to run a network share, a vpn and some other services on it and in order to get them working reliably I ...
0
votes
0
answers
853
views
Ubuntu Server on Raspberry Pi 5 is not connecting to the internet
Ubuntu Server on Raspberry Pi 5 is not connecting to the internet.
Images of the errors:
I tried reinstalling it at least 5 times: Ubuntu server on Pi won’t connect to Internet
more insight hope ...
0
votes
0
answers
31
views
driver=r8169 driverversion=6.5.0-21-generic not accepting I/G bit in MAC address assignment
I am trying to set a MAC address to my RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller, but the ID does not accept xy:xx:xx:xx when y is even. It seems the I/G bit (multicast) cannot be set.
...
0
votes
0
answers
24
views
automatically reconnect ethernet
I had some trouble with my switch hub, where ubuntu server systems are connected via ethernet. Now, i saw after solving the problem on my switch, the ubuntu servers (headless) are still disconnected. ...
- 55
0
votes
0
answers
82
views
Issue with dual-NIC clients and netplan swapping ethernet interfaces
Background: 1500+ stations running Ubuntu Server + ubuntu-desktop-minimal, most are still on 20.04, new stations are all deployed with 22.04 (with a ubuntu-desktop-minimal --no-install-recommends flag ...
- 11
0
votes
0
answers
174
views
wired connection stopped working
On my desktop (Ubuntu 23.10 only) I have both ethernet (Intel 211) and wireless. The ethernet connection stopped working; I can't reach the Deco router. The wireless connection works ok. The ...
- 141
0
votes
0
answers
73
views
Simple eth0 config not working
I am a network guy but I am trying to set up a syslog and snmp server in gns3 using an Ubuntu appliance:
Linux Toolbox-1 5.15.0-91-generic #101~20.04.1-Ubuntu SMP Thu Nov 16 14:22:28 UTC 2023 x86_64 ...
0
votes
0
answers
25
views
gateway is not pingable /etc/networ/interfaces
I have a raspberry pi and modem connected to the network. I add the following lines to /etc/network/interfaces
source-directory /etc/network/interfaces.d/*
auto eth0
iface eth0 inet static
...
- 1
0
votes
0
answers
152
views
Wired Connection suddenly not working in Ubuntu 22.04
This computer is used to serve SSH remote access.
The ethernet cable and network are all working fine.
However, the computer has suddenly lost connection and now shows '?' sign for the wired ...
- 1
0
votes
1
answer
105
views
Ethernet Connection Issues 22.04 H12SSL-I
Issue
Sometimes I am able to connect to ethernet briefly, but then it stops working within a few minutes, and nothing I've tried (mainly disabling and re-enabling ethernet) seems to turn it back on.
...
- 131
0
votes
0
answers
351
views
NetworkManager with Ubuntu 22.04.3 LTS : tethering through ethernet port needs manual off/on
I am using Ubuntu 22.04.3 LTS on a Lenovo G70-80 laptop and am connected to my box through a Wifi link, which works fine.
I need to share this link to a device connected to my ethernet port (driven by ...
- 1
0
votes
3
answers
212
views
Pull mac address via bash script
A bit background.
Im creating a script that will run on USB stick with Ubuntu. It needs to pull various info from the current laptop its connected to and save it to a file.
Right now Im using "...
- 3
0
votes
0
answers
53
views
New Ubutu 20.04.4LTS shows only lo for networks
edit added:
linux-firmware:
Installed: 1.187.27
Candidate: 1.187.27
Version table:
*** 1.187.27 100
100 /var/lib/dpkg/status
I've got a Dell XPS 13 9315 with Ubuntu 20.04.4 freshly installed by Dell. ...
- 93
1
vote
2
answers
731
views
Connecting Synology NAS Directly to Ubuntu Machine via Ethernet
UPDATE 1/27/2024: I thought I had it working with having DHCP enabled on the NAS but this actually caused problems in my network due to there now being two DHCP servers. So I can't have DHCP enabled ...
- 117
0
votes
0
answers
66
views
Ethernet disconnects sporadically
After updating from 23.04 to 23.10, my ethernet cuts out several times a day for 3-10 minutes. I have replaced cables, checked my eero, router and switch (all other machines on the same network work ...
- 1
0
votes
0
answers
74
views
My ethernet internet doesn't work, the Network icon shows a question mark
My Ethernet internet had always worked without a problem on my Laptop (ThinkPad t450), until about a week ago, when suddenly the Ethernet stopped working (only the Ethernet, the Wifi works well on the ...
0
votes
0
answers
58
views
Xubuntu 22.04 no internet with ethernet
Recently just changed to r8168 driver due to slow network with cable. It worked fine just 2 days.Suddenly no internet. I tried to edit /etc/resolv.conf, but it showed same
1
vote
1
answer
399
views
Ethernet Not Working After System Update on Kubuntu
I'm encountering an issue with my Ethernet connection after performing a system update on my Kubuntu machine. Following the update and a reboot, the Ethernet port has ceased to function, although Wi-...
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1
vote
0
answers
96
views
wifi not working when connect ethernet port ubuntu server, operate internet(wifi) and LAN (eth) at same time
I have searched for the same issue and there were some similar but none of the solutions worked for me.
I have a PC running ubuntu server 22.04.3 it has a wifi adapter set at
192.168.1.111
I can ...
- 11
0
votes
2
answers
231
views
Ubuntu Server stuck searching 2 minutes on disconnected network adapter
Edit3: yeah I don’t have an interface folder in my network either weird
Edit2: potential fix seems to be amending
The Ethernet in /etc/network/interfaces from auto -name- to allow-hotplug
I have yet ...
1
vote
1
answer
364
views
How can I force my Ubuntu Server to use the correct ethernet port (interface)
I have an Ubuntu Server running Ubuntu 22.04.3 LTS.
It has two ethernet ports, enp3s0 and enxf8e43b557271.
enxf8e43b557271 is much faster, so I want to use that by default, but, if it goes down for ...
- 33k
2
votes
1
answer
1k
views
What does the `arp` command show?
I googled and took a look at this page for example, and I know that the arp command is supposed to show the mapping between an Internet Protocol (IP) address and a Media Access Control (MAC) address.
...
- 865
0
votes
0
answers
191
views
adding ipv6 addresses to loopback sub interfaces
I have Ubuntu 20.04. I have three distinct loopback interface lo:11, lo:12 and lo:13. I want to assign a unique ipv6 address to each of those loopback interfaces and advertise them with bgp(v6).
The ...
1
vote
0
answers
52
views
Only Wi-Fi is working but not ethernet
Today I connected lan cable and I found that ethernet is not working (no icon also for ethernet).
Output of ifconfig :
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 ...
- 11
0
votes
0
answers
231
views
Wifi / Ethernet disconnecting at random times on Ubuntu 22.04
My connection via Wifi or USB Ethernet (from an Iphone) stops after some random time (2min to hours). It has been like this for two weeks now. Bluetooth is disabled.
The same happens in Windows, where ...
- 1
1
vote
1
answer
447
views
How to change the static IP address of an adaptor in Ubuntu using a script?
In Ubuntu 22.04 I am trying to change the static IP address of a single network interface without changing anything else. This interface is an ethernet-to-USB converter connected to local ethernet ...
- 865
0
votes
0
answers
371
views
System freezes when using an Ethernet connection
I need help with an issue I've been experiencing. After one of the updates for Ubuntu 22.04, whenever I connect my laptop to an Ethernet cable, all programs and the graphical environment start to hang....
- 1
1
vote
0
answers
176
views
wire and wireless suddenly disappeared
My laptop has Ubuntu 22.04.3 LTS . Wire and wireless suddenly not accessible. Clicking top right on my desktop either wire or wireless icons disappeared. Clicking setting>Network there is ...
- 21