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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Cannot detect a lan device on my network

Previous post I have a Huawei WiFi router that has 4 ethernet ports. I have connected one of those to my laptop and connected another to device via an ethernet cable (RFID reader). I run the software ...
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Unplugging ethernet cable without disabling NIC

Is it possible to configure the OS (Windows XP or Linux) or the NIC itself so that the NIC/interface remains enabled when the ethernet cable is unplugged? Often, especially when I'm tinkering, it's ...
Adrian Pronk's user avatar
2 votes
4 answers
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How To Add An Ethernet?

I was wondering how can I add an ethernet connection to a desktop computer that does not have any ethernet connection. I am using Windows XP Pro. I want to add internet cable to my computer but I ...
LightHeaded's user avatar
2 votes
2 answers
8k views

resolv.conf not working properly with Ethernet in Ubuntu

I have a Lenovo X200 laptop on which I am running Ubuntu 9.10. Recently, (I assume after some updating, but I really don't know) my ethernet port stopped working under Linux. A more tech/linux-savvy ...
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2 answers
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How to bind applications to specific network adapter

I am currently using a computer in a corporate environment which is connected to the intranet through the ethernet adapter and to the internet through the wireless adapter. The problem is this: the ...
Bralok's user avatar
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Why is the network speed on my Mac Pro (early 2009) so slow?

I have a really weird networking issue on my Mac Pro (Early 2009). I can’t get higher network speeds than about 2MBit/s. It doesn’t matter if this is over AirPort or one of the Ethernet ports. An iMac ...
Rafael Bugajewski's user avatar
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3 answers
2k views

How do I wire a crossover cable to connect two devices together?

I need to make a ethernet crossover cable to connect two devices together. Anyone know the process to make one from scratch?
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how do I set up a wired 1 to 1 network connection between two computers?

I have two computers connected by an Ethernet cable. One is a Windows 8.1 devbox, and the other is a CentOS 7 development server with only a terminal interface (No GUI). The development server will at ...
CodeMed's user avatar
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Determining ethernet wire category/speed

I moved into a home that has Ethernet cables in the walls and all my computer's are gigabyte Ethernet ports, same as my router and the cables I use to connect my PC to the Ethernet ports in the wall, ...
Davis Smith's user avatar
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1 answer
191 views

Using Isolated Coax Cable as Ethernet Connection?

Sounds possible, but haven't found anything that's affordable or that looks legit that can achieve this in ($10-$50 range) Basically, I have an isolated coax cable that goes from my office to the ...
ajm113's user avatar
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31 votes
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Bridging Wifi to Ethernet on Ubuntu not working

When running Windows I was able to bridge my wifi connect through my laptops Ethernet connection so a range of ethernet only devices could piggy back off my wifi (Raspberry Pi, Xbox etc etc). I am ...
DevWithZachary's user avatar
31 votes
7 answers
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Ethernet cable too long?

I have an Ethernet cable running from a Huawei ADSL router to a computer> The total length is 61 meters (200 ft). When connected to the computer, a cycle of identifying, disconnected, identifying, ...
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5 answers
32k views

Ethernet vs TCP vs IP?

What is the difference between Ethernet, TCP, and IP in simple (simple abstract) terms? Please do not copy from Wikipedia...
waka's user avatar
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26 votes
8 answers
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cat6 cable only getting 100mbps over larger distance

I know this question has already been asked a few times but I feel that my case is a little different since I've tried all the solutions provided in the other threads. I created a small diagram to ...
BugSquanch's user avatar
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19 votes
3 answers
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Make NetworkManager prefer ethernet over wifi if both present

A similar question was asked for windows Automatically prefer Ethernet over WLAN but I'm on linux and am using NetworkManager. Right now if the ethernet cable is plugged in and is available while ...
Fetchinson0234's user avatar
19 votes
2 answers
91k views

How to determine a network cable's maximum speed?

I have some machines connected in my workplace network using Ethernet cables. I know some types of Ethernet cable can handle speeds up to 5 Gbps but I'm not sure which ones. So I want to determine the ...
Tak's user avatar
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Does it matter what UDP port a WOL signal is sent to?

i have seen many WOL instances use port 7 and many use port 9, does it matter? Isn't it just looking for a WOL packet at layer 2 or ethernet?
rjt's user avatar
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How do I find out the speed of an Ethernet cable?

During the years I've collected many ethernet cables. I'd like to know the speed of each one (10Mbit / 10BASE-T or 100Mbit / 100BASE-TX or 1000BASE-T). How could I find out the speed of each Ethernet ...
Giorgio's user avatar
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15 votes
6 answers
19k views

Set Ethernet Network as Metered Connection in Windows 8

Windows 8 introduced a new feature which allows users to set any Wi-Fi network as metered so that they can check their bandwidth usage: [img credit] But, it doesn't allow users to set any Ethernet ...
Elmo's user avatar
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14 votes
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Windows 8 doesn't automatically join Wi-Fi network if Ethernet connection is active; router prevents Ethernet devices from seeing some Wi-Fi devices

In Windows 7, my laptop would automatically join both an Ethernet network and the Wi-Fi network in my house (both going through the same router). In Windows 8, if the Ethernet connection is present, ...
Herb Caudill's user avatar
13 votes
6 answers
169k views

Convert home phone wiring to Ethernet

Can I convert phone wiring in walls to act as only Ethernet network because the phone wiring is not in use and not connected to the phone company so there is no voltage in the wires I remove the ...
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12 votes
5 answers
36k views

Crimping CAT6 cables results in lower bandwidth than expected

I'm trying to make my own CAT6 cables, because I need specific lengths. I've managed to create 2 "working" patch cables, but when I hook them up to my cable modem, both of them take a fairly long ...
Stefan Billiet's user avatar
11 votes
4 answers
10k views

Why don't my CAT5e patch cables work?

I have wired CAT5e cable from my router (downstairs) to a switch in the middle bedroom upstairs. There is then another CAT5e cable from the bedroom switch to a switch in the office in the next room. ...
jpl42's user avatar
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11 votes
2 answers
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Joining two ethernet cables: strip and solder or buy an adapter?

I need to connect two Ethernet cables together. Right now, neither end is terminated. I think my two options are to either terminate both ends and then use something like this RJ45 Coupler F/F ...
0xFE's user avatar
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4 answers
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Very slow Wi-Fi download speeds using a TP-LINK WR841N (1/10th of full Ethernet speed)

I have 105/10 internet through Comcast and I have a TP-LINK WR841N router. I use Ethernet and Wi-Fi. I get ~100Mbps through Ethernet, and only around 10 Mbps through Wi-Fi. Yesterday I had ~50Mbps on ...
Georgi Angelov's user avatar
10 votes
3 answers
15k views

Mac OS X automatically turn off Airport if ethernet cable is plugged in

I have a Macbook Pro with Snow Leopard, any way to do this?
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9 votes
7 answers
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How to repair the checksum of the non-volatile memory (NVM) of Intel Ethernet Controller I219-V of an ASUS laptop?

I have a problem with a new ASUSPRO B8430UA laptop: its Intel Ethernet Connection I219-V does not work under Linux. In fact, I tried two different laptops of this model, and both had the same problem....
Alexey's user avatar
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8 votes
4 answers
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Under what circumstances can/will a 10BASE-T device slow down a 100BASE-T or faster network?

Suppose I have a 10BASE-T device, but everything else on my network is 100BASE-T or faster. When I attach the 10Mbit device, one of two things could happen: It could be passed through as 10BASE-T, ...
Fred Hamilton's user avatar
8 votes
2 answers
8k views

Check MAC address of a device on the other end of an Ethernet cable

Assuming I have a machine with Windows / Mac / Linux OS installed that's connected via Ethernet to an unknown device (e.g.: router, another computer, LAN printer), how can I figure out that device's ...
Marcin Seredynski's user avatar
8 votes
3 answers
18k views

Can I connect to two networks simultaneously with two Ethernet cards?

I have a LAN in my building that uses the 10.10.19.* IP range. In addition, I have an ADSL connection at home that uses the 192.168.1.* IP range internally. I also have two Ethernet cards. Is there ...
Akshay's user avatar
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5 answers
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How to make a Gigabit Ethernet crossover cable?

Nowadays, I usually make EIA/TIA-568A crossover cables for Fast Ethernet(10/100 Mbps) networks. On these cables, just 2 of the 4 wire pairs are used to comunications(the 2 remaining could be used for ...
Diogo's user avatar
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7 votes
7 answers
139k views

Disable wireless when ethernet connection is detected on an HP EliteBook

My company has recently started giving out HP Elitebooks to employees, replacing the Lenovo ThinkPads we used to use. I'm trying to find a way to disable the wireless when it detects that an ...
wrigley06's user avatar
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7 votes
3 answers
39k views

Why is my connection only 100Mbps?

We recently have installed Cat6 cabling in our walls using Cat5e jacks (Could not find any other type). From research, this seems to be a working method, however the connection is auto-negotiated by ...
AwesomeMarioFan's user avatar
7 votes
1 answer
9k views

Why do i see Ethernet II protocol in wireshark in wireless connection?

I have a small network in my home that consists of one network device named airties rt-205 and clients. Clients connect to this device via wireless and send its packet to the internet through this ...
Pioneerhfy's user avatar
7 votes
5 answers
100k views

Can't bridge WIFI and ethernet, because wireless disconnects when I connect ethernet cable

I want to Bridge my Windows 7 laptop's wireless and wired adapters. I just select my ethernet and WIFI adapter, and choose create bridge. However when plugging in ethernet cable, instantly my WIFI ...
Janis Veinbergs's user avatar
6 votes
1 answer
17k views

No network on freshly installed Debian

I installed Debian Squeeze (using the cd1 image) without an Ethernet cable plugged in, telling the installer to "configure later" the network. Now, when I boot, I have no network manager nor ifconfig ...
etuardu's user avatar
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6 votes
2 answers
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Can I plug my standard phone into an ethernet jack?

I just moved into a new house and it's wired for ethernet. There's a junction box that has a "Bridged Telecom Module TM-8" in it. My cable modem's phone jack is plugged into the "Line In" on that box ...
Micah's user avatar
  • 333
5 votes
0 answers
505 views

Issue in internet sharing (ethernet) to Android device in Mavericks

I have installed HoRNDIS driver on my Mavericks and my phone is displayed on network preferences (with green connected icon). The issue is I cannot get access to the internet. I shared the ethernet ...
tom's user avatar
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5 votes
3 answers
34k views

Convert RJ11 to ethernet cable?

Can I convert this funny cable with 4 wires into an ethernet cable for connecting my laptop to the internet? The cable currently has a white/yellow banded wire, a white/blue banded wire, an orange ...
minseong's user avatar
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5 votes
1 answer
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How to set the same static IP address for LAN and wifi interfaces on a Win7 laptop?

When I'm at my desk at home, I connect to my network through my Ethernet LAN port. Sometimes however I have to get up and move my computer around (such as to connect it to a TV in another room), so I ...
AniDev's user avatar
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5 votes
3 answers
28k views

Does Ethernet cable affect speed?

I'm only getting 10 Mbps on my Ethernet connection but the NIC supports up to 100 Mbps. Could the Ethernet cable be the culprit? What labels on the Ethernet cable should I look for to make sure it's ...
Steven's user avatar
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5 votes
2 answers
6k views

How to make Windows 10 Ethernet connection with no gateway a private connection?

I'm new to Windows 10 and have troubles finding a way to set one of my Ethernet connections (I only have one active currently) a private connection. This is simply a connection that connects to one of ...
Zach Saw's user avatar
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5 votes
1 answer
781 views

Would firewire networking be better than 100Megabit ethernet?

My office network has a fully switched 1000Megabit ethernet network. I have an Apple iMac with a Gigabit NIC and FireWire, and a Compaq laptop with a 100Megabit NIC and a 4-pin FireWire interface. ...
Josh's user avatar
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5 votes
2 answers
5k views

Port forwarding + shared connection with Ubuntu

Because my wireless router's ethernet ports are defective, I set up a shared wireless connection from my laptop (which has wifi) to my eMac (which does not) via a crossover ethernet cable. The laptop ...
Joey Adams's user avatar
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5 votes
8 answers
58k views

How do I know when my on-board ethernet is dead? (Realtek 8112L LAN controller w/ AI NET2 )

So I have an ASUS P7P55D-E Pro motherboard. It has an on-board Realtek 8112L LAN controller w/ AI NET2. I suspect that my LAN controller is dead but I don't really know for sure. This is what I know ...
Usagi's user avatar
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5 votes
3 answers
7k views

Should I disable Wi-Fi on my laptop when my Ethernet cable is plugged in?

At home I often connect my laptop to my Wi-Fi network. However, when I'm near my desk I plug in my Ethernet cable since that gives me a faster connection to the internet. But if I don't disable my Wi-...
RexE's user avatar
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4 votes
4 answers
18k views

What difference does it make whether the computer uses USB Ethernet Adapter, or a network card?

Just what the title states. I'd like to know what difference it makes to the modem/switch, speed, power consumption whether the computer is connected by a USB Ethernet Adapter instead of a physical ...
Everyone's user avatar
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4 votes
2 answers
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Can I use an Apple AirPort Express as a wireless-to-wired bridge?

I have a wireless network using an Apple AirPort Extreme. That device is set up in my office and hooked up to the cable modem. I have a TV in another room which can accept a wired internet ...
Chris's user avatar
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4 votes
1 answer
12k views

Windows 7 Set Default Network Connection

How can I set the default network connection to be Ethernet. It seems my wireless card in my new laptop becomes active before the Ethernet and leaves me with that connection which is much slower than ...
Dale Fraser's user avatar
4 votes
3 answers
61k views

Gigabit Ethernet switch from 1Gbps to 100Mbps back and forth

Alright, you're my last chance on resolving this problem that I have been trying to fix for a couple of months so far. Problem My gigabit Ethernet speed switches from 1Gbps to 100Mbps frequently. ...
iSR5's user avatar
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