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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No power delivery with PoE though a tested cable

I'm facing an issue with PoE and a cable extension. I have an HP 1920-48-PoE+ (JG928A) switch and a Cat6 wire installation. All the house wiring is connected directly to the PoE switch. I want to ...
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What sort of consumer equipment would I need to utilize multi-gigabit service? [closed]

AT&T is announcing multi-gigabit fiber for homes (up to 5 Gbps). This has been available to companies for years using SFP to Ethernet, but it sounds like AT&T is smart enough to provide that ...
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No network connection when connecting to server directly to router, connections over switch work

Situation/Build First of all i build a small home server for storage proposes. It runs on Linux. Ubuntu 20.04.3 with Kernel 5.13 (HWE) enabled to be more specific. I used a MSI MPG B460I Gaming Edge ...
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What is this Nokia networking device?

It has an ethernet cable from my modem. It also has a very thin wire and what looks like an HDMI cable stuck in it. The modem has an ethernet WAN cable connecting it to the wall WAN socket. All this ...
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Ethernet cable connected to WIFI router. Speed not matching the provided ISP

I have a internet connection broadband of 75 Mbps connection speed. When I am connecting the ethernet cable directly to my PC desktop I am getting speeds of 60-70 Mbps in speed tests. The same ...
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can i use power over ethernet with a cat 6 cable

I have a network switch that can provide Poe and I plan to use it to power an access point at my house. do I need to use any special cable to power the access point using Poe or will a cat6 cable ...
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Laptop can't connect to internet: "destination port unreachable". What can cause it?

One of our acer laptops suddenly can't connect to the internet through ethernet, although, it can reach the printer on the network. But pinging the default gateway or any external IP results in "...
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Why are there are no USB 3 over Ethernet devices (aka: USB extenders) on the market?

There are plenty of adapters that transmit USB 1 or 2 protocol over Ethernet cable (marketed as "USB extenders"). But why not an extender for USB 3? Here is a typical USB 2 over Cat 6 ...
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Cannot ping other LAN devices

I have a ZTE F618V2 that I got from my ISP. I'm trying to connect 2 devices using the 2 ethernet ports on the router(192.168.1.2 and 192.168.1.3, respectively), but they do not see each other. Pinging ...
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Connect to home network and corporate network at the same time? [duplicate]

When I connect to my corporate network on Endpoint VPN, I can no longer see my local network resources (RDP to them, or connect to local shares). I am on a Windows laptop. Is there a way to have my ...
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Convert wifi signal to wired signal

I have a Rpi which is unable to connect to wifi, but it has Ethernet port. In which mode should I use my Tp-link device to convert my existing wifi to wired signal? I tried out the wifi extender to ...
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Windows-10 : Not able to access internet through Wi-Fi when Ethernet interface is not active

I have a windows-10 machine having 2 different interfaces. Ethernet adapter Ethernet: Connection-specific DNS Suffix . : IPv4 Address. . . . . . . . . . . : 192.168.0.101 Subnet Mask . . . . . . . . ....
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How to avoid ethernet acces point bottleneck

I am getting my full 150 Mbits/s from my ISP provided optic fiber modem/router combo (Nokia G-240W-B) if I wire through ethernet. However, if i connect ethernet through the AP i set upstairs (TP-Link ...
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How to enable the ethernet setting inside an external USB hub?

I have a laptop and I connected a usb-c external usb hub which has an ethernet port (since my laptop doesn't). My Laptop: System Model DELL XPS 15 9570 64 bit OS Name Microsoft Windows 11 Home Version ...
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How to enable ethernet connection in Windows 11?

In Windows 11, I primarily use ethernet connection. I accidentally right clicked and disabled it from network connections window. Now I can't see the option to enable it back on again. How can I ...
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Connect desktop to wireless network via wifi repeater with ethernet

I have a win 10 desktop with a malfunctioning wifi adapter and I am trying to connect it to my home's wifi network. However, the router is located too far away and it is not possible to connect ...
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Internet is not working when rndis device is connected in Windows?

I have a Windows 10 PC with Ethernet plugged in and internet was working initially. My internet stopped working when I connect my embedded linux device via USB. I am using that device via rndis(...
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How does Intel PROSet attempt to calculate the length of a cable, and why does it work on some adaptors and not others? [duplicate]

I've got the 'wired' version of the Intel PROSet Adapter configuration utility installed when installing 10Gbe cards on my desktop. While messing with it, and shortly after needing to reseat an ...
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Why, if I am connected via Wi-Fi and send a packet to another device in the same Wi-Fi, the dest MAC address in the link layer is not the AP's?

In the IEEE 802.11 protocol, in the link frame, the second address is the sender MAC address, and the first address is the receiver MAC address, which is the AP address if the sender is a station, and ...
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Realtek Gaming GbE Family Controller not working

I am currently on Windows 10 19043.1415 build. After the latest update of Windows, my Ethernet driver(Realtek Gaming GbE Family Controller 10.54.1111.2021) suddenly stopped working. I tried recovering ...
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What is the purpose of this rail on an intel X540-T2 NIC?

I recently picked up a pair of Intel X540-T2s for various reasons. They're generally meant for (older) servers and workstations but I'm installing them in relatively modern desktop machines. I noticed ...
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Windows 10, how to connect to wifi and ethernet at the same time while on different respective networks

I'd like to connect a Windows 10 computer to two separate networks simultaneously using two different routers, one with its wifi (internet-connected) and another with ethernet (no internet). Is there ...
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No eth0 interface on Arch Linux

I'm trying to connect over Ethernet. I always did it over Wi-Fi before. Now I saw that my Arch Linux doesn't even have an eth0 interface nor something like enp0s3. ip link outputs just a lo and wlan0 ...
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Windows 10: change ethernet settings to Auto/DHCP without logging in

The Windows 10 machine I am using has a requirement of needing DuoMobile in order to log in (even on admin accounts). I had DHCP/Internet setup at one point and got it working, and also allowed ...
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Network speed slow on CAT5e cables

I have a cable running through my walls directly connected to my modem, and going to a wall socket. When i run a speedtest on my computer by directly connecting to the wall socket, i get around 90 ...
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How do you troubleshoot a connection stability issue on Windows 10?

Reply from 8.8.8.8: bytes=32 time=1ms TTL=118 Reply from 8.8.8.8: bytes=32 time=1ms TTL=118 Reply from 8.8.8.8: bytes=32 time=1ms TTL=118 Reply from 8.8.8.8: bytes=32 time=1ms TTL=118 Reply from 8.8.8....
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ubuntu 20.04 server not recognising ethernet connection

I have an ubuntu 20.04 server. When installing I connected an ethernet cable to the motherboard ethernet port. I am certain that it is connected to the internet but it won't connect. I have tried ...
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Ethernet adapter disabled and locked out

so this is my situation: the computer works inside a domain. need internet to login. was having issues so inside a user session i used the network admin session to disable the network adapter tried ...
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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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Gigabit ethernet interface only runs at 100Mbps on Debian 10

I have trouble with my ethernet adapter. It is a Gigabig interface and runs as such after rebooting my machine. But after a while (I have not yet found any correlation as to why and when this happens) ...
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Can't ping LAN devices from Wi-Fi connected devices

I'm really struggling finding answers to my problem. I have a PC that is connected via Ethernet cable (LAN), and I have a laptop that is connected over Wi-Fi. When pinging, the two devices were not ...
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Connect two Windows 10 computers with straight-through ethernet cable

How can I connect two Windows 10 computers with straight-through ethernet cable? I don't have a crossover cable. This post here gives me some chance that it is possible: Ethernet - using simple ...
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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 ...
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What is this networking device?

I have ethernet port and coaxial port in every room and they seem to be branched out from the low voltage box in the master bedroom. My Comcast gateway device is connected to the coaxial port in one ...
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What handshakes happen (or need to happen) when I connect my FPGA with Ethernet cable to my home router+modem device in one of its ethernet port? [closed]

I have a FPGA edge device. I want to send and receive ethernet packets to my laptop through the router+modem device at my house. My laptop is connected to the router+modem through the wifi (for ...
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How to SSH to a device connected locally through Ethernet without having any access to it

I have an Nvidia Jetson board I want to connect to via SSH. It is not connected to any router or any display, but my Windows computer through an Ethernet cable. I assume got the IPv6 of the device and ...
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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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Wake On LAN works after linux shutdown but not windows

My PC has dual boot Ubuntu and Windows 10, installed on separate hard drive. Some background: when the PC power on, it goes to the grub menu, and default on Ubuntu. each time I want to use the Windows,...
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How to turn my PCs into a wired router?

Why do I need to turn my PC's into a router ? I need to connect my Philips lights to Philips Bridge, and my Philips Bridge to the Philips app. The Philips Bridge has a power and an Ethernet port as ...
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How to detect a network device's promiscuous mode in modern Linux?

I'm wondering how to detect promiscuous mode of an interface in modern Linux ("Modern" meaning the lack of netstat). I'm looking for a solution more user-friendly than checking flag 0x100 in ...
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DIY Cat6 cables only giving 100Mbps instead of 1Gbps

I've made my own ethernet runs in the past and they've always worked great. I needed to make some more so I got some cable, some RJ45 connectors and a crimper. No matter what I do I can't get the ...
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Ethernet questions

Had my ethernet cable redone since the people that wired the house didn’t do it correctly and caused it to have interference. Bought a tester and shows it “passed”. (1-2-3-4-5-6-7-8) /(3-6-1-4-5-2-7-8)...
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What type of device should I be looking for to connect WiFi to existing ethernet? [closed]

I live in a 2 story shared apartment and there's WIFI downstairs. The coverage in my room is very bad, possibly because my desk is partly metal. I have an ethernet port in my room and previously I ...
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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 ...
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Ethernet limited to 10Mbps after reinstalling motherboard

I know there are plenty of threads on this topic already, but I can't get it to work. Whenever I try to set it to Auto Negotiation, I get the error of an unidentified network. When I set it to 10Mbps ...
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Auto negotiation through desktop switch

I ran into an issue recently that I'm trying to understand. I'm connecting to a Raspberry Pi through a LAN7500 USB2.0 to 10/100/1000 Gigabit controller under three situations. A) From the LAN7500 ...
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Unknown ethernet traffic when capturing traffic with pktmon on Windows 10

When I capture traffic on Windows 10 machines through pktmon, a big chunk of traffic is only ethernet, with an unknown ethertype and unknown, but not locally administered MAC Addresses.Example: ...
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Internet speed capped at 100 mbits on Realtek PCIe Family Controller, until I manually replug the cable

Basically, until I unplug and plug back my cable, I'm stuck at a 100 mbit connection. Replugging it fixes the issue, but I'd hate to do this every time I start up my computer. Could someone please ...
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79 views

Big Sur Ethernet Issue

I am looking for ethernet driver for macOS big sur (VendorId:0x0fe6). But the adapters I tried so far didn't work. One of them is: https://plugable.com/blogs/news/new-asix-driver-fixes-macos-11-big-...
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Tethering Windows 8 wifi to Ubuntu 20.04 pc using Ethernet

I’m trying to use my windows 8.1 laptop’s wifi to my ubuntu 20.04 pc using an ethernet cable. The ubuntu pc has no Wireless Adapter but i want to connect it to the router somehow. i found an ethernet ...

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