Questions tagged [ethernet]

A family of networking technologies for LANs. Ethernet encompasses bother the physical connection between devices and part of the protocols which define how the connected devices can communicate.

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Duplicated network packets with VMware Workstation 17 Pro and Intel Ethernet Controller I225-V bridged network adapter

I'm seeing network packet duplication for traffic between guest and host on several machines that use an ASUS ROG STRIX B650E-E GAMING WIFI motherboard in their builds. This board comes with an Intel(...
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Slow wifi speeds and ethernet ports in house not working

I am brand new to networking and find it really interesting, but also very confusing. First of all, I have a Google Nest Wifi (one wan & lan port) with two wireless access points (doesn't support ...
dandaman's user avatar
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What standard is this RJ45 connector using?

I was expecting to see T568A/B but this is neither. What is this? It's 1. Brown 2. Green stripe 3. Orange Stripe 4. Blue 5. Blue Stripe 6. Orange 7. Green 8. Brown Stripe. I've wired the other side ...
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Send Data Across NICs Using socat

I'm working on a project trying to develop a data diode for unidirectional transfer of data, and I'm hoping to use socat for some measurements. As a first step, I want to use socat to send data from ...
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Ethernet connection keeps dropping out

I'm having a problem with my Ethernet connection dropping out. In games like destiny 2 and new world where if your net drops out (even with wifi as backup) you get kicked from the instance, which is ...
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Desktop seems to be unconnected to network

I'm very bad at networking but I'd like some help if possible please. I'm trying to connect my VR Headset (Quest 2) to my desktop wirelessly but my desktop seems to not be in the network. Details on ...
John's user avatar
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Windows 11 only recognizes one USB-to-Ethernet adapter at the same time, despite two being plugged

I use Windows 11 on a Dell laptop. It has no built-in Ethernet port, so I use a USB-to-Ethernet adapter. My network works with one adapter, but ultimately I need two at the same time. More ...
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How to run cat6 shielded cable from rack

I'm planning on running shielded cat6 cable because Ethernet will travel parallel to power on multiple occasions. The rack and patch panel they are going to will be bounded to ground. A few questions: ...
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Network line speed 1G on one switch and 10Mbps at the other switch to the router

Hi I have a strange issue. I have a network setup with wiring in the wall using cat 6. The one has a keystone in the wall and the other location comes to a wiring closet with a home databus with 5e ...
Hacker At Large's user avatar
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MacBook Pro Apple M1 disconnecting from FRITZ!Box 7490

I use PC: Device: MacBook Pro (13-inch, M1, 2020) OS: 12.6 (21G115) Monterey Ethernet adapter: Satechi ST-TCMA2M USB C Router: AVM FRITZ!Box 7490 Firmware: 07.29 Regardless do I connect with WIFI ...
fpopic's user avatar
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HP Probook 640 G3 LAN issue "Device Cannot Start – Error 10"

I've got two refurbished "HP ProBook 640 G3" with LAN "error 10" "Device cannot start" The problematic LAN device is PCI\VEN_8086&DEV_15D8&SUBSYS_82AA103C Which ...
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Connecting computers

Have a switch with internet connection. To this switch are connected two computers. And also wi-fi router. To router is then connected another computer. What is the best way to connect two computers ...
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Constant timeout between hosts connected to switch/router via Ethernet on a LAN

At this point I'm out of ideas so I thought I will ask for help. I've got 4 devices connected to my home router (Dasan H660GW). It is also an access point and an L2 switch like most other home routers....
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Routing failure on a multihomed Devuan laptop when ethernet cable removed and wifi connection active

I have a Devuan Chimaera laptop (GNU/Linux, based off Debian) that has ethernet and wifi connectivity. When I connect to the wifi and take out the ethernet cable, I expect packets to no longer be ...
Omega Weapon's user avatar
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How to automatically connect to WiFi once ethernet stops working

So my problem is fairly easy: The wired ethernet connection stops working from time to time but stays connected. What I want to do is keep the WiFi turned off, or at least disconnected, as long as the ...
xRedClues's user avatar
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Forward internet and use as Gateway

Windows Server 2019. Fairly simple (I guess). I have two ethernet adaptors, one has internet and the other don't. The second will be on the same network as another computer and this computer need to ...
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Is using an Ethernet cable with 7/ and 8 swapped (1-2-3-4-5-6-8-7) safe to use with a PoE camera?

A pre-existing wire that was used for an old security cam had 7/8 swapped when I used an Ethernet tester. I want to repurpose the cable for a new PoE camera. Would I need to fix the cable or can I ...
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Attempting to fix a strange Link local issue with Powershell

So I was on here with a different question, and I've made some progress in Identifying the issue. I have a network that isn't allowed to have DHCP, and all of our MTR Pcs live on it static. ...
Barrington's user avatar
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Windows 10: Ethernet slow, unstable or not working at all after unplugging Ethernet cable

Since a few months I have from time to time a strange problem. The Problem: Usually my laptop is using Ethernet for internet. However, sometimes I will unplug this cable to take my laptop to another ...
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Debugging slow network performance on a specific machine

I have the following case: Desktop and laptop plugged-in to the same switch OS: Arch Linux (up-to-date, same configuration, same kernel, ...) The speed in LAN when testing between both machines with ...
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What could be causing this interference, and how can it be resolved?

I have two wired connections going into my desktop, from two different ISPs. Connection 1 is a symmetric gigabit fiber connection directly to the computer, and Connection 2 is coaxial, passed through ...
Obie 2.0's user avatar
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Two Windows 11 systems in dual boot setup: when switching between two, I need to reset my router

I have a dual-boot PC setup with two instances of Windows 11 Pro on separate SSDs. Whenever I switch between OS's (for games/surfing and software development, respectively) I always am informed by ...
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PS4: manual IP address / internet connection failed

If I connect my PS4 directly into the wall ethernet then it works fine But I recently bought a Netgear ethernet switch so that I can connect my PS4 via ethernet but also have my wireless router for ...
user1698526's user avatar
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CAT6a Shielded Home Network Installation and Shielding

I am about to run the cables for my new home network. I've chosen to use CATa Shielded Cable with a rack mount setup as follows. The questions I have regard the shielding. Thank you in advance. The ...
Hartman9's user avatar
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Switch Netgear XS748T does not detect link

I am having some issues setting up a switch in my lab. There is a 1-Gigabit ethernet line avalaible and I have a Netgear XS748T 48-port switch (only supports 1G and 10G ethernet links). Everything is ...
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Use netcat to send UDP packets out 1 ethernet port and into another on the same server

I am trying to sanity check a network device and want to use netcat to send upd traffic out a specific ethernet port (eth0 for example) and receive that packet on a different port on the same system (...
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Copying file from server is slow but is fast when copying to server

I have a Samsung 970 Evo+ in the built-in M.2 slot of the HP 290-p0043w and have a gigabit network cable connection directly between it and an gigabit port on an Asus X99 Deluxe motherboard. Both ...
EllipticalInitial's user avatar
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ifconfig -a is showing br-ba165999130f instead of eth0 (ethernet works)

I have my PC connected to the router using a cable and I also connected a WIFI USB TP-LINK. Just checking ifconfig -a and I noticed there is no eth0 interface. Instead, the first one is called br-...
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Why there are some entries in the Mikrotik RouterOS ip-scan table who don't have MAC addresses or RTTs?

There is a command /tool ip-scan in the RouterOS, which basically does network scanning. It works quite efficiently, however, there is something I can't understand in its behaviour. For some network ...
Nikita Kipriyanov's user avatar
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MacOS Ethernet en0 not working - Mysterious error

I have older Mac Mini, suddenly the Ethernet connection stops working. When I connect to same network by Wi-Fi it gets correct IP address from DHCP and everything works. When I try to connect with &...
Michal Kerndl's user avatar
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How to properly configure two usb to ethernet adapters in windows 10

We have a setup, where we are using two usb to ethernet adapters to connect a computer with a HIL (Hardware in the Loop). Computer A -> USB-to-Ethernet-Adapter 1->Ethernet cable->Ethernet-to-...
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What is the best way to pull out and replace a damaged UNDERGROUND CAT cable?

In order to share internet access between two neighboring buildings, last year I buried about 100 feet of 1-1/4" pvc underground. I snaked through this cable through: https://www.amazon.com/gp/...
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Avoiding packet loss on a 800+ Mpbs data stream

At the highest level of abstraction, I am trying to send 800 Mbit/s from a hardware instrument to a 'normal windows computer' over a dedicated ethernet connection. But if I do so, I experience ...
user129412's user avatar
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CentOS 8 on Hyper-v - cannot establish internet connection

I am having problems with configuring internet connection for CentOS VM hosted on Hyper-V Initially I installed OS with 1 internal network card. Configured it and now I am able to communicate between ...
johnlemon's user avatar
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No internet when a specific lan cable is connected

Having a very strange issue - we recently had someone move into our spare bedroom about a month ago, and since he's arrived, our internet has died about 4 times where no one could connect to the ...
Nelliel's user avatar
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Use second router in separate building on same ethernet

I am based in the UK and we have a wifi network in our house. Our internet is provided by EE so we have an EE router. We have an office in our back garden which I use for work which needs to have wifi ...
elduderino's user avatar
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Using Both wifi and Local network

Hope all doin good.. Kindly i need a help in how to use my laptop to access the Internet via wifi while i am using the same laptop to access my company network with access to the all VLANs via ...
Ahmad Mekdad's user avatar
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Ethernet cable CAT 7 installation

I'm installing an ethernet network on my house. One of the cable goes under the floor so this installation is meant to stay like this for a while. So I try to buy the most recent hardware for future ...
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Kali Linux not connecting to network via lan

I tried all solutions available on the internet but none work. I changed(added) interfaces to: auto eth0 iface eth0 inst dhcp I changed NetworkManager.conf to [ifupdown] managed=true I restarted the ...
Jaysmito Mukherjee's user avatar
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Windows Explorer in Win10 does not show all PCs on the Ethernet network

I have a small peer-to-peer network with two Win10 PCs (call them A & B) and two Win7 PCs (C & D), a laser printer and a Broadband router (plus a laptop on occasion) all wired through an eight-...
cadmasteruk's user avatar
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Issue with connecting two devices with Ethernet cable

I have a laptop and PC to be connected via Ethernet cable. The laptop has internet through WiFi and I would like to share this internet with the PC. I had earlier set up these for file sharing and ...
Nirmal Kumar.A's user avatar
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Linux Mint - USB Ethernet Adapter Shutting Off Under Load

I've recently installed Linux Mint on my desktop computer. Whenever I begin download something over the internet using my TP-Link USB to Ethernet adapter, my connection shuts off after about 10 ...
Tomato3246's user avatar
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WIFI Working but ethernet is not

Recently my ethernet connection stopped working. Didn't notice for a while because Wifi continued to work. Basically I keep getting 'unidentified network' doesn't have valid IP configuration. Tried ...
CPA's user avatar
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100mbps with some cables/connections, 1000mbps with others

I encounter that I can reach 1000mbps with some combinations of RJ45 outlets and cables, and only 100mbps with other combinations. I can reach 1000mbps with all cables (when combined with a given ...
Ward's user avatar
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One computer connects at 100Mbps, other computers connect at 1000Mbps

I have a client whose home PC is connecting to a wired ethernet connection at 100Mbps instead of 1Gbps/1000Mbps. The odd thing is that when I connect other devices, they connect at 1Gbps with no ...
ShadowFox's user avatar
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Traffic going through Wi-fi even though Ethernet IP was given

While doing some networking experiments with my new Raspberry 4, I ended up in the following situation: the RPI4 was connected to my router both via Ethernet (IP: 192.168.1.230) and via Wi-Fi (IP: 192....
Filippo Bistaffa's user avatar
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Connect Odroid to internet via ethernet shared connection

This previously was working and has now stopped; I can't figure out which setting has become somehow corrupted. I have an Odroid connected to a Windows 10 PC over ethernet. I want to share the ...
Mark's user avatar
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Two PCs, Same Network, Completely Different Internet Speeds

Unsure what has happened over the past month. I've noticed on my gaming PC the speeds I receive are much lower than what they used to be. Specs: Game PC: i9-10900k 2080ti Asus Z490-E Gaming Mobo ...
Jake's user avatar
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Slow connection on wired Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) on Manjaro

I'm running KDE Manjaro with the 5.8 linux kernel and I have the Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) network board. The speed never goes ...
Ivan's user avatar
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How to convert an Ethernet interface (via USB) to a simple RJ45

I have a device that outputs a USB cable that, when plugged into a computer, creates it’s own network interface. My question is, how can I convert that USB cable to a RJ45 Ethernet cable, so that I ...
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