A network interface controller (also known as a network interface card, network adapter, LAN adapter and by similar terms) is a computer hardware component that connects a computer to a computer network.

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LAN adapter works every second time I turn my PC on

I have a really strange problem and I am desperate for help now, since I could not find any solution on the internet. Specifications first: I am using a desktop computer and a router. The router ...
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21 views

how to setup routing on Win 7 to send all data going to 10.148.xxx over ethernet and all other ranges over wi-fi?

I want to setup my win 7 to route everything going to the 10.148.xxx.xxx over my Lan and everything going elsewhere over my wi-fi. Any help?
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591 views

Can't Bridge Windows 8 Ethernet and Wireless Adapter

I'm trying to bridge my Windows 8 laptop's wired and wireless adapters so I can get internet on an older computer (not that old it's running Windows 7 Ultimate). I did this before a while back but now ...
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58 views

How to use Two NIC Parallaly in Linux Centos 6

I have System with two NIC. I have to Applications & I want to use both NIC at same time(Parallel). Problem is that both Lan card not active at same time. If I disaled eth0 than eth1 is works. ...
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330 views

Disable Intel(R) 82578DM Network Connector permanently

My computer, HP Compaq 8100 Elite CMT x64-based PC, running Microsoft Windows 7 Professional (64 bit) is equipped with an Intel(R) 82578DM Gigabit Network Connection which connects to the Motorola ...
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26 views

How to overtake the limit of NICs in virtualization softs?

I want to connect unlimited number of NIC to a mikrotik virtual machine but all virtualization softwares has limit to the number of NICs so, is there a soft that doesn't have limit? if there isn't,...
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226 views

Prioritize network adapter initialization on startup

TL;DR: How to make the network adapter connect earlier/faster? When I start up the OS (Win 8.1) from either Hibernation or from a full restart my network adapter won't connect as fast as I'd like it ...
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101 views

Download speed and ping suffers during PC to PC file copy

Why does the ping and internet download speed suffer on PC#1 when files copied from PC#1 to PC#2? During file copy, my ping goes from 20ms to 600ms+, Download speed goes from 1.8MB/S to 250 KB/S give ...
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120 views

Read registers on a NIC card on Windows

I have a Realtek Ethernet Controller on my x86 machine running Windows 7. I have the datasheet for the Ethernet controller. I am trying to debug a low-level issue and I need to read certain registers ...
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391 views

how to create multiple virtual NIC which each of them can take IP from DHCP when only single physical NIC is available

There are several virtual machine tools that can create multiple NIC for their guest OS. thought almost all of them let the virtual NIC of the guest OS to connect the physical NIC, I haven't seen any ...
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50 views

Balancing Two NICs

I play a lot of online games, and having a constant, uninterrupted, internet connection is crucial. My idea: Connect both NICs in the machine to the same router. My question: Will this ...
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262 views

Can the MAC address of the USB stick broadband connection be traced together with the IP address?

Can the MAC address of the USB stick broadband connection be traced together with the IP address? Also, the mac address of the broadband stick used, computer or network card inside the laptop, etc.?
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Slow/restricted internet speed on Ubuntu 14 (driver/hardare issue?)?

I recently built my own desktop and I have noticed that it consistently gets ~ .8 mbps download speed when on the ethernet and slightly better when using wifi. I have run several tests that can ...
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307 views

Onboard audio and LAN not working

Yesterday, I cleaned up my pc and both onboard realtek network adapter and realtek audio adapter are stopped working. (I've removed the nvidia geforce 8400gs graphic card and using onboard graphic ...
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122 views

Linksys AE1200 stops detecting hotspots

I have a Linksys E1200 router and Linksys AE1200 USB adapter, and am running Windows 7 x64. Periodically my connection drops and I have to either use the Windows 7 troubleshooter, or unplug/replug ...
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401 views

How to make two loopback adapters talk each other?

I have to test some java network application. Each client-app is identified by his IP. So the simpliest way to test it is to run some machines or VMs... But each instance of this application can be ...
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162 views

Windows 8 creating 'ghosts' VPN connections

I have a paid VPN service (StrongVPN), and as I live in university halls I have to connect to the internet through the university's VPN and then connect to StrongVPN. This usually works fine, but ...
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96 views

CIDR < 5 not allowed

Problem Two NICs have been connected using an ethernet cable. The ethernet adapters have been configured as follows: NIC I IP: 8.0.0.1 Subnet mask: 248.0.0.0 NIC II IP: 8.0.0.2 Subnet mask: 248....
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711 views

How can I tell if my wired ethernet connection is using 802.1X authentication on Windows 7?

From a command prompt (or a script) I'd like to be able to query the wired interface to determine if it has succesfully established an 802.1X connection, or if it has fallen back to unauthenticated ...
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4k views

Windows 8.1 Update: Network Adapter Issues

I've recently updated my pc from Windows 8 to 8.1. However,I am now unable to connect to wireless networks. Instead, it says 'No Connections Available' in the networks charm. Under the wireless ...
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2k views

Trouble setting up more than 4 network adapters in VirtualBox (XP Guest)

I've been trying to setup the 8 network adapters that VirtualBox is supposed to support, through the command line. I need them as bridged networks (because I use them to forward ports from a server ...
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177 views

This device cannot start(Code 10) when installing a new NIC

So I've recently bought a new Intellinet Fast Ethernet PCI Network Card, and I can't get it to work. I've tried uninstalling the previous ethernet card drivers and reinstalling the new ones, but it ...
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1answer
107 views

Hardware specifications for WOL (Wake On Lan)

I am planning to buy a computer, which I would like to start using Wake-On-Lan from outside the LAN. I was looking on the internet and there is lot of information to be confused. 1) What are the ...
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620 views

Cannot visit some pages in browser

I have just installed my new network adapter for wireless connectivity. I am using TP-LINK TL-WN727N. I installed the drivers from the manufacturers website to get the latest version. The installation ...
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168 views

What type of cable do I need to connect to this storage box [closed]

I have this Hitachi Storage box (Hitachi DF600-RKAJAT Hard Drive Array): It has fiber drives, and I have a Fiber channel card like this: How can I join them?
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121 views

VirtualBox network adapter blocking samba share

My host is Windows 8.1, my server is a Raspberry Pi (irrelevant). My server is giving all nodes on LAN a samba share, however my desktop has VirtualBox installed. I am unable to access my samba share ...
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308 views

DNS server cannot get DNSSEC information

I did the netalyzr test which checks some ports and network configs. The result was strange. It contained a problem with DNSSEC: Only some DNS root server instances returned proper DNSSEC ...
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112 views

Can't disinstall Intel(®) Centrino(®) Wireless-N 100

I need to disinstall Intel(®) Centrino(®) Wireless-N 130, but when I try to disinstall it, nothing appens: ComputerManagement -> Device Manager -> Network Adapters -> Right-Click on Centrino -> ...
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1answer
51 views

Is there an fast open-source portscanner? [closed]

Looking for a fast open-source c# port scanner ? Using handshake layer, pcap. Want some example for studying purposes.
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1answer
1k views

network connection suddenly disconnected and disabled during large file transfer over the network

I am currently using windows 8.1 64 bit on my laptop. I have a working network setup and I can start to transfer some large (20+GB) files. However after a few minutes the network connection ...
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1answer
1k views

Unable to access localhost & Internet using one adapter in CentOs

I have the below dev. environment. Hardware:- Windows 7, 32bit, HP Laptop. Software:- CentOs 6.5 running on VirtualBox 4.3.10. In a nutshell The problem is that I can't access the internet and ...
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403 views

Bind incoming packets to 1 interface and outgoing packets to 2nd interface?

I am have a Linux machine with 2 network interface cards, I need to use one for incoming packets, other for outgoing packets.
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Does a VirtualBox/CentOs need two adapters to work properly ?

I have a Windows 7, 32bit, HP Laptop. I have CentOs 6.5 running on VirtualBox 4.3.10. Here is my eth0 config. Code: #vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 HWADDR=08:00:27:81:0F:...
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How to use netperf on specific NIC port?

I have two servers, SERVER and CLIENT and each server has its own onboard 1 GbE ports, and its own NIC with a 10 GbE port. SERVER and CLIENT are interconnected on both a 1 GbE switch (administrative ...
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46 views

Are the network interface card same in all cisco devices

I have old cisco 2600 routers but they dont have any network interface card My friend has cisco pix firewall which has network card attached with 4 ports so can i pull the network card from cisco ...
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ethernet interfaces are sometimes renamed to 'renameX' on startup

I've installed a recent daily build of Ubuntu Trusty on several HP dl380e 2U servers. These servers have 4 x 1Gb onboard NICs. In addition, I've installed a PCIe 2 port 10Gb NIC in each server. The ...
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2answers
2k views

How to disconnect/connect ADSL modem connection to ISP by command? (Windows 7 SP1 x64)

I want to write that command in a .bat file and run it by windows scheduler at certain times of night and morning. (for example: open connection at 23:00 and close it again next day at 9:00 ...
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1answer
1k views

Multiple MAC addresses on a single network interface

Since the other question about this (Multiple network interfaces on a single NIC in Windows) only asks about different routing, I'm going to ask this again: Is there any way to create multiple ...
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319 views

How can I diagnose suspected NIC issues?

Over the past few days my ethernet-wired internet connection has started acting up. Here are some of the issues I've encountered: Websites are intermittently slow to load. Large downloads routinely ...
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Using DHCP to get multiple IP addresses on single NIC on RedHat

I am trying to obtain multiple IP addresses using the ISC dhclient supplied with Red Hat Enterprise Linux 5 in order to provide the IPs to multiple applications, which will run on separate virtual ...
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Network adapter settings via cmd

How to open setting of the specific network adapter via commandline in Windows 7 Enterprise? I'm under domain user but also have access to local administator user. Under domain user I have no rights ...
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1answer
27k views

How to Tell If NIC supports Gigabit Ethernet

How do I know if my network card is capable of gigabit speeds under Windows 7?
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162 views

WindowsCE device with single NIC - Two IP address ranges

I have a question about a windows CE device which has a single NIC (and no possibility to extend the device with a second NIC). This device is configured to use a fixed address. CE Device: IP: 192....
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1answer
217 views

Why do hubs and switches receive on pins 1 and 2 and transmit data through pins 3 and 6 of their cable?

Is there any reason they couldn't have been made to use the same pins as NICs and routers for transmitting and receiving? I had trouble finding any information about this through Google, so I hope you ...
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56 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
114 views

Which is better:1x1ac or 2x2n, on an 802.11ac network?

I am configuring a new hp computer and I was wondering if I should get 802.11ac network card that is 1x1 or if I should get a 802.11n network card that is 2x2. I am on an ac network. So the ac card ...
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245 views

Windows internet connection only after deactivating and activating LAN adapter

When I start my Window 7 PC I get no internet connection. LAN works, but internet does not. If I deactivate and then reactivate the LAN adapter, I get an internet connection. Any idea what could be ...
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264 views

I don't have eth0 but eth1

How come I don't have eth0 but an eth1 instead? I restart service udev, like below, but my ether card is still eth1, not eth0 % service udev --full-restart * Stopping the hotplug events dispatcher ...
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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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203 views

Why I get a VMnet Network Adpater's IP even if my Wireless Network Adapter has priority?

On Windows 7, when I try to ping my computer name I get an IPv6 address, so I ping with -4 option, then I get an IP related to my VMnet (VMnet1) Network Adapter which results 192.168.220.1, and not ...