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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16
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2answers
102k views

Difference between Ethernet splitter and switch

I have one Ethernet port that is wired directly to the router on another level. However, I want to run a desktop and a server both off this one Ethernet port. Can anyone tell me the difference ...
17
votes
4answers
31k views

When concurrently connected to wired and wireless ensure Windows 7 uses wired connection

When I am at my desk and my laptop is in its docking station I want to ensure that it uses its wired connection and not my wireless network. I am hoping/guessing that the preference in connection is ...
11
votes
4answers
4k views

Automatically prefer Ethernet over WLAN

Is is possible to force IP connections over the wired ethernet if it is connected and over wireless LAN if the wired ethernet is unavailabe (e.g. cable disconnected). Both network connections would be ...
8
votes
6answers
2k views

CPU usage shoots to ~50% and stays there until suspended

This is the Windows Vista problem, seen, I think, mostly on dual processor laptops, where % CPU suddenly shoots to about 45% and stays there. Once this has happened, % CPU will never return to normal ...
7
votes
5answers
12k views

Combining two ethernet ports

My computer has two gigabit ethernet ports on the motherboard. Is it possible to have the OS (Win XP) combine them and treat as a single 2-gigabit connection? Failing that, is there any general ...
10
votes
4answers
8k views

If a computer is connected to internet via wireless and lan both, which way Internet traffic would flow?

How does this actually work? How different ip addresses on ethernet adapter and wireless adapter are handled for internet data? I know these ip are translated in NAT table but the whole process ...
4
votes
2answers
4k views

How can I secure an Ethernet-over-power network?

I just bought myself an Ethernet-over-power adapter, and plugged it in. It seems to be working great, but now I'm concerned that my neighbours may be able to access my network. I live in a rowhome ...
4
votes
3answers
1k views

Buying another router and use as a “signal repeater” in bridge mode?

I asked about using a pc almost as a "router" and although it's a solution, I tought about just buying a second router to act as a "bridge" between my connection. (Reason: I don't want to have to keep ...
0
votes
3answers
6k views

Routing internet through ethernet to a computer without a Wireless adapter

I'm setting up a small home network. I have a laptop which connects to internet wirelessly- that works fine. I have a desktop connected to this laptop by an ethernet cable which I'd like to access the ...
107
votes
19answers
19k views

How do I physically prevent people from unplugging an Ethernet cable?

We have a crowded computer laboratory. We render free Ethernet ports for laptop users. But they don't carry their Ethernet cables with them, they unplug cable of a fixed desktop PC and plug it to ...
19
votes
7answers
44k views

How to Bridge Two Ethernet Ports on Mac OS X

How can I bridge two wired ethernet interfaces on Mac OS X (e.g. the current MacPro comes with two ethernet ports)? Googling turned up (e.g. this Apple forum post and this openvpn post) that this is ...
12
votes
9answers
4k views

“Modern” Ethernet over coax

So, I've just bought a house. It's reasonably new - built in the early '00s. One of the features that got built in was a cable TV drop in every room. The cabling is gorgeous - there's even a wiring ...
13
votes
3answers
5k views

Will multiple switches slow transfer speed

I want to create link between a data server (It's more like NAS) and around 300 computers. Data transferred per day is around 2GB/computer and speed really matters. If I use a single switch it would ...
6
votes
3answers
17k views

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, ...
11
votes
4answers
8k views

Wrong order in CAT5 cabling — does it matter?

I've got in-wall CAT5 wiring in my house. The wall sockets were done by an electrician and the requirement was straight-through T-568B, but I think he got it wrong. When I use a cheap cable tester, I ...
10
votes
7answers
6k views

Should I use a network hub or network switch?

I want to put a networking device on an Ethernet connection between 2 digital devices. The communication will be 1-to-1; there will only be 2 devices connected through the networking device. And I ...
4
votes
3answers
261 views

Is there a way to stop my Windows 7 laptop from connecting to the Wi-Fi if the ethernet cord is plugged in?

Essentially I want to have my wireless automatically connect to the router, but only if the ethernet cord is disconnected. If the ethernet cord is connected, I don't want it to automatically connect ...
1
vote
2answers
4k 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 ...
-1
votes
1answer
65 views

Setup Help with multiple routers

I'm trying to expand the wireless network in my church and am having some issues. I'm not a networking expert so I'd appreciate some input. Here's our setup: AT&T/Motorola Gateway (NVG589) ...
5
votes
1answer
560 views

What is the purpose of an Ethernet coupler that reverses all the pins?

As the photo shows, the pins are wired "straight across", rather than diagonally. This means that it does not work as an Ethernet/8P8C coupler because the transmit pins are mapped to unused pins (for ...
3
votes
1answer
1k views

When does ethernet cabling need to be shielded?

I run IT for a small business that does primarily office type work (no manufacturing or high levels of electrical interference), and we're looking to build additional office space onto our current ...
3
votes
1answer
3k views

Why have my network interfaces been renamed after installing Ubuntu, and how do I rename them back?

I have a low power server, with 4 ethernet sockets. It was running Fedora 11, with 3 of the network sockets named eth0, eth1 and eth2 (the final network socket was not in use --- it was eth3 but ...
3
votes
5answers
2k views

Moving large files between Windows machines

I need to move a large file from one laptop to another. Can I just join the two machines with an ethernet cable and create a shared folder on my desktop or is it more complicated than that? Update ...
3
votes
5answers
2k views

Make SATA drive a router drive

I have a 1 TB seagate SATA hdd, i want to connect it to my linksys wireless router using ethernet... *I dont want to buy a new Drive, but use an existing one, maybe with some kind of external casing. ...
3
votes
3answers
2k views

Ethernet Port Troubles

A copy of an email I sent to company I bought my PC from last December. Does anyone else have any further suggestions? Basically yesterday my Internet connection went down, and my diagnosis ...
2
votes
4answers
1k views

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 ...
1
vote
1answer
61 views

Captioning Phone- Ethernet Splitter or Switch

I have a captioning phone that I use for work (hard of hearing) and the phone requires an internet connection. Seeing that the wifi is building wide it is recommended that we use an ethernet ...
1
vote
3answers
5k views

Wired and wireless conections: force Windows to connect to laptop through Ethernet?

I have a desktop connected to the internet and to my home network through Wi-Fi, and a latptop connected to said desktop through an Ethernet cable. But Windows seems to only reach the laptop through ...
1
vote
1answer
1k views

How to connect 2 routers (Asmax and D-link) RJ11 vs RJ45 issue

I just bought a new router, D-link DSL 2641B and want to connect it to another one, provided by my ISP, Asmax AR 804MP. Previously, I had Linksys WRT350N, and there was no problem, while I had ...
1
vote
2answers
2k views

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 ...
0
votes
3answers
3k views

Can I use a ethernet splitter to connect a router to two devices? [duplicate]

I have a portable mini wireless router with different functions (AP/Client/Router). Can I use a ethernet splitter to give internet access to two devices? The router only has a ethernet port and ...
17
votes
5answers
9k 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...
5
votes
4answers
20k 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 ...
16
votes
7answers
42k views

Why is my laptop favoring the wireless connection over my LAN connection?

When my laptop comes out of sleep, I have to typically wait about 90-120 seconds before my network (wireless or NIC card) 'wakes up'. During that time, I see my wireless connection with 'limited ...
8
votes
3answers
12k 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?
17
votes
6answers
24k views

Why does just splitting an Ethernet cable not work?

I thought the Ethernet is logically a one-line communication bus (for argument's sake, I am excluding hubs). All machines attached on the bus hears the same signals and the machines themselves try to ...
0
votes
2answers
2k views

Touchscreen over Ethernet (with video?)

I've got touchscreen which has a VGA output and a USB (or alternatively, serial) connection which acts like a mouse (for the resistive touch part). I've got Cat5E cabling in my house, and would like ...
15
votes
5answers
58k views

Wireless vs. Wired: which is faster?

I have the option of hooking up my machines to the internet either wirelessly or via ethernet cable (wired). I'm curious as to which is faster; the approximate wireless signal strength (average) is ...
12
votes
3answers
25k views

How to take advantage of two Internet connections (WiFi / Wired)?

I have two separate internet connections, one through WiFi and other Wired. However, generally I have observed that Windows try to use only one ( mostly faster one/ Or Wired by preference - I am not ...
7
votes
3answers
10k 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 ...
5
votes
4answers
34k 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 ...
3
votes
1answer
8k 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 ...
2
votes
2answers
6k views

Reloading udev rules fails

I've changed my rules in /etc/udev/rules.d (Ubuntu) to change my ethernet port names from 0 to 1 and 1 to 2, however whenever I run: sudo service udev restart sudo udevadm control ...
1
vote
1answer
113 views

I have 4 Ethernet RJ45 ports which were limited to 200KB per second. How to use all 4 ports to speed up my network connection?

I have 4 Ethernet RJ45 ports under my desk. The speed of those ports were limited to 200KB per second. Is there a way to use all 4 ports to speed up my network connection? What I want is 200KB X 4 = ...
11
votes
4answers
1k views

What would be the disadvantages of using a 4 stranded ethernet cable?

I got this cable with a homeplug AV 200 device - its labelled cat 5e But looking at the plug end has me rather dubious about it. (There's only 4 strands there, not the standard 8 - and missing ...
10
votes
1answer
70k views

How can I share a laptop's Wi-Fi connection through its Ethernet port?

I have two laptops, one with a working Wi-Fi connection (Laptop 1) and one without (Laptop 2). As I have no Ethernet plugs nearby I want to connect Laptop 2 to Laptop 1 via an Ethernet cable so that ...
8
votes
5answers
11k views

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 ...
5
votes
3answers
3k 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 ...
4
votes
1answer
5k views

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 ...
4
votes
2answers
4k views

What can cause auto-negotiation to fail on network?

Imagine you have both computer with a NIC that do gigabit with a router that do gigabit. What can cause auto-negotiation to fail on network ? (with proof if possible)