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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My Internet access stopped working after restarting CentOS Linux

I have given static IP on my Vmware CEntoS virtual machine. My internet was working fine. but after restarting machine This is my ifcfg-eth0 file DEVICE="eth0" NM_CONTROLLED="no" #ONBOOT="no" ...
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3answers
350 views

Can I split the ethernet signal from cable modem

Can I connect the Ethernet cable from my cable modem into A wireless router A direct Ethernet connection to a PC Do I need anything special? What kind of splitter?
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47 views

Sudden and persistent powerline networking issues

Seems like quite a few people have strange issues with their powerline setups, but I picked up a pair of Linksys PLE400's about 6 months ago when I couldn't achieve a reliable wireless connection due ...
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1answer
68 views

Why are USB connectors different from RJ45/Ethernet connectors?

I note that USB cable and Ethernet cable (RJ45/Cat5/...) have the same function : to transmit data as fast as possible over a wire or a port that we can connect and disconnect. In their evolution they ...
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1answer
730 views

Set MAC address fails - RTNETLINK answers: Cannot assign requested address

I am attempting to change the MAC address of eth0 to 3d:dd:c8:88:c2:0d on a linux mint 15 cinnamon machine. Using "ip link set dev eth0 address" fails as seen below and macchanger produces a similar ...
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1answer
29 views

Can the Linux kernel shuffle Ethernet frames?

I have an FPGA connected to a Linux x86 via an Arista switch. The FPGA-to-Arista link is 10Gb Ethernet, and the Arista-to-x86 link is 1Gb Ethernet. For some reason, when I sent a "burst" of 10 ...
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0answers
24 views

Using 2 internet connections - (1 wifi - 1 ethernet) - on the same machine at the same time OSX

Is it possible to use 2 internet connections - 1 WiFi 1 Ethernet at the same time on a mac mini (OSX) ? Ive got 2 lines coming into the premasis and would like to use one for backups and one for ...
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0answers
625 views

Windows 7 won't detect ethernet cable

A month or two ago, I bought an ethernet cable to replace my existing wireless connection on my computer, as I frequently live stream and wireless connection is too unstable to do that. I should also ...
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1answer
71 views

Two Devices, Same Subnet, No Communication

This is a stripped down version of my home network, and my problem is I can not get 192.168.20.100 to communicate with 192.168.20.4. The workstation pings both routers and the server fine, and ...
17
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1answer
925 views

Looking for a fiber optic “switch” or “router” for home use

The gist of my question: What is a "fiber optic" switch called? I.E. a layer 2 ethernet switch that uses fiber TX and RX connections and sends layer 2 network traffic between the fiber strands ...
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1answer
79 views

Can't use Wifi when Ethernet is Active

I'm not able to use Ethernet and Wifi Simultaneously on Windows 7. I've read that it is supposed to be default in Win7, but when I connect the Ethernet, I can't connect to WiFi. A pop-up comes up ...
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3answers
92 views

Why is my wireless internet connection abysmal when my wired connection is great?

I know speed is likely to be slower over Wi-Fi than ethernet. This is about the consistency or persistence of the connection itself. When I'm plugged into gigabit ethernet, I get a great connection, ...
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86 views

Network Instable Connection over LAN, Airport Express works

I just got a cubox-i4 but have a big problem with the LAN connection. It establishes and crashes again. The thing is, that if I connect it via LAN to an Airport Express (connected via wifi), the ...
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3answers
460 views

How does a router detect a connected device ? (ENC28J60 module)

BACKGROUND: I am actually an Arduino beginner and learning to connect one to the internet via Ethernet. I'm not using the more commonly used (much easier) Ethernet shield (based on the Wiznet ...
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1answer
129 views

Is it better to run voice, data and tv cables in separate conduit?

I'm hoping to run new phone, ethernet and coax cables. As it turns out, I'll also be running 3 conduit runs from the distribution point to the attic. Is there a significant benefit to running the ...
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1answer
37 views

Network limited in dorm but I have password [closed]

So I just moved into dorm and I received username/password for my internet connection. When I plug in ethernet cable I got Ethernet and under it Limited so I suppose I should enter username/pass ...
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3answers
223 views

How to communicate with devices that have the same IP address

I have a situation where I need to communicate via telnet to multiple devices that have the same IP address. The context is that I am writing a "final test" of devices in a manufacturing facility. ...
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0answers
39 views

How to I access router admin page if I'm bridging my laptop's wifi connection to it via ethernet?

I'm using my laptop to get internet via wifi from a public network. I then connect my laptop's ethernet port to the uplink port of the router and set up the bridged connection in windows' ncpa.cpl ...
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0answers
29 views

How does synchronization between two independent computer's NIC work (e.g. on Ethernet)?

I'm currently studying computer networks and the question came to my mind, how it is physically possible for the NICs of two networking computers to determine the clock rate of incoming datastreams. ...
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1answer
90 views

Why data rate must be “auto” while using Auto-MDIX?

I've just learned that ethernet port does not link up if you keep auto-MDIX working even if both speed and duplex is fixed (100 Mbps with full duplex, in my case) at both end. Wikipedia states as ...
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2answers
36 views

unusual ethernet behaviour on win 7

I've returned home from uni, where my computer was on their network. For authentication, they used IEEE 802.1x authentication, so I had to configure my NIC for this setting. When I connect my ...
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1answer
69 views

Connecting two wireless routers with ethernet - will the secondary router transmit wirelessly?

I have two wireless routers. The primary router is a Thomson TG784 is wireless modem router. The second wireless router is a TP-Link TD W8950ND. If I connect the primary router to the secondary ...
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6answers
346 views

Can I create an Ethernet network without using IP

As I understand from the ISO-OSI model, MAC addresses operate on a different layer than IP addresses. This is clear to me. I can accept that Ethernet (LAN) just does not make use of IP addresses to ...
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2answers
236 views

Why do Jumbo Frames hurt latency?

Recently I've been reading about jumbo frames and I got confused in a few places. As far as I understand there is a lower bound on the Ethernet frame size between 'store and forward' points (layer 2 ...
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31 views

500Mbps powerline dropping, but 85Mbps working fine

I've been using 85Mbps powerline adapters for years now with absolutely no trouble. I recently upgraded to 500Mbps adapters, but for some reason I getting a dropped connection about every hour or so. ...
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1answer
125 views

Realtek ethernet port does not work in HP 1000 notebook PC with Windows 7

A day or two back, my HP 1000 notebook had been in sleep mode for a long time. Then when I opened the screen the LAN light turned off. The weird part is that the LED for LAN glows when the screen is ...
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0answers
37 views

A few computers loss internet but can access local resources , other 8 never loss connection

This is a small network with Comcast ISP ( Cable ), there are 11 PC connected to network all are wired Ethernet, the same 3 computers will loss there internet connection sometimes, not all at same ...
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1answer
643 views

Share WiFi connection to another laptop

I have a wireless router (TP-LINK WR-702N) and 2 laptops. There is a WiFi connection that I can only connect to with one of the laptop (Acer Aspire 5810TG older model, Windows 7), due to it ...
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0answers
76 views

Configuring wired network at Windows 7 machine: no authentication tab at LAN properties

My laptop's Ethernet port got (physically) broken so I bought an USB Ethernet adapter and installed it just fine. However, when I try to configure its LAN settings there is no ''Authentication'' tab. ...
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0answers
56 views

Creating a router “spreader”

So at my room at home, I have 2 extra computers, with like 1gb ram on each. I have the router on the other side of the wall, where a ethernat cable cannot reach it. It has to go through a wall first. ...
53
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5answers
5k views

The locking clip/tab on my Ethernet cable's plug is broken. How can I fix it?

I have a 10 meter long Ethernet cable. One plug has the little locking clip missing, just like missing the part in red ellipse in the following picture. How can I fix it? Is this something I ...
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1answer
97 views

How to route VPN connection?

I want to connect to a VPN server - running Ubuntu Server 12.04 - using eth0 and route its output to eth1 so I can connect my home PC to eth1. How can I achive this?
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1answer
105 views

Home LAN - heterogeneous network with two SOHO routers as WLAN Access Points - Failing

I have the first world problem that my home requires more than one WiFi access point (AP) to have coverage throughout the house. PROBLEM My wired router, directly connected and adjacent to my cable ...
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0answers
51 views

sharing internet from one windows 7 computer through ethernet to other computers

I have a usb modem that i use with my computer to access internet. Now I want to share the internet to other computers using ethernet cable. I'm using a switch to direct ethernet cables to other ...
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3answers
192 views

Allow Windows 7 laptop to connect to multiple networks with different configurations using single ethernet port

I use my Windows 7 laptop at work and at home. At work, I connect through the network, and must specify a static IP, gateway, and static DNS servers. At home, I can connect using automatic ...
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2answers
321 views

Enable Internet (Wi-Fi) and Intranet (Ethernet) to work at the same time

EDIT: OS is Windows 7. I have seen a couple of threads about this, but I am so limited in my networking knowledge that I have been unable to get those solutions to work for me. I am trying to ...
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1answer
77 views

StarTech USB 3.0 to Gigabit Ethernet ethernet stopped working on ubuntu 13.10 after a recent system update

The device uses ASIX AX88179 internally. I pulled the latest driver from the link above and I still experience more than 50% packet loss for the device.
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80 views

Connection over the Ethernet cable - connection get frozen

I got a problem with my new laptop witn Windows 8.1. When I'm connected to the internet through the Ethernet cable my connection get lost after some time (sometimes minutes, sometimes hours). After ...
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0answers
72 views

3com OfficeConnect 8 port switch freezes/crashes?

I have some old 3com OfficeConnect 8 port switches. I have two of them, switch A and switch B, connected together and some hosts connected to the ports of both switches. When I let a host on switch A ...
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1answer
270 views

Internet Connection frequently dropping on Ethernet

My internet connection is frequently dropping on Wired Lan (Ethernet) but the wireless works fine without any problem. It's not an issue of Internet Speed as Internet works fine in Windows. ifconfig ...
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0answers
44 views

2 PC's One Switch

I have a router with a switch (a) and a pc (1) then a run of ethernet from switch (a) to another switch (b) with 2 pc's (2 & 3) I can ping from PC 2 to PC 1 But can't ping from PC 3 to PC 1. ...
10
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4answers
675 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 ...
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3answers
93 views

What technology to use for home network

I live in panel-house (cube with concrete walls, reinforced with steel) which is part of bigger block. Recently I have successfully setup wifi network through the flat, but at the recieving end I have ...
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2answers
1k views

Joining two ethernet cables: strip and solder or buy an adapter?

I need to connect two Ethernet together. Right now, neither end is terminated. I think my two choices are to terminate both ends and then use something like this. Or to just strip each wire and join ...
0
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3answers
677 views

Running Ethernet over two phone lines

I am trying to run Ethernet through my house along existing phone wires. I had originally planned to use the phone wires to pull the cat5e cable, but it appears the phone lines are stapled to studs ...
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0answers
122 views

Ethernet interface 'em1' not allowing connection

Why does my network interface 'em1' (the onboard ethernet) not allow NetworkManager to do anything with it? It also doesn't seem to work to use ip addr add to add an IP to it. With my laptop plugged ...
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1answer
183 views

Several WiFi Access points, connected with wires, in the same network

I'm about to move my place of living and my company HQ at the same time to a new location. It's a 2-story building with rather thick concrete walls, and when I tried to put my wifi router/access point ...
0
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1answer
95 views

SSH from Ubuntu to embedded linux

I'm a beginner un networking. I'm trying to connect an embedded linux to my Ubuntu 12.04.3 LTS by Ethernet. I have configured the embedded system to work with a static IP adress (192.168.9.119). ...
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167 views

direct ethernet connect from Windows to Linux machine

I have a windows 7 laptop, and a raspberry pi running linux(raspbian). I have configured a wifi dongle on raspberry pi, and it's connecting to a wifi network. But now I want to connect my Windows ...
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1answer
50 views

Linksys Ethernet switch holds five computers or not?

I have a Linksys Ethernet switch conected to the Internet. The switch works fine with two computers. My problem is when I try to connect another two computers, then nothing works. The switch has five ...