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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Adding a second network card (dedicated connection to a network music streaming device) to a PC already on a home wireless network

I have a pretty normal home wireless network with a combined adsl modem/router which all my (Windows XP/Vista) computers use DHCP to connect wirelessly to and share resources among each other in a ...
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Multiple interfaces to one IP address?

At present, I have: a Netgear router with DHCP off at 192.168.0.1 my computer eth0 at 192.168.0.2 wlan0 at 192.168.0.2 The wlan0 interface always connects to the router, while the eth0 interface ...
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Merge two 1GBps NIC's on a single PC

Is it possible to merge two 1GBps NIC's on a single PC thereby doubling the available LAN bandwidth? Two other PC's would then be able to request data at 1GBps each instead of splitting the 1GBps NIC ...
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Browsing website hosted in the virtual machine from host machine's browser

I have installed Oracle VM Box and created a Virtual machine. Now I have hosted(in IIS) a website in the virtual machine. I want this website to be browsed in the host machine's browser. Can anybody ...
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How can I change the MAC address of Microsoft Loopback Adapter?

I am trying to designate a MAC address for MS loopback adapter. Installation is fine. I see in device manager, the adapter and in advanced tab, I enter the mac address I desire. But when I do in cmd ...
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wireless interface: usb or pci?

I have a router in my basement, and a desktop in the office upstairs, about 20 feet away through walls. With my laptop, which has a 5300 bgn card, i get a consistent 80% + signal with 100+mbps ...
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No Wi-Fi after installing Ubuntu 10.04

I have an HP Pavilion dv6500 with a Broadcom 802.11g Network Adapter. I installed Ubuntu 10.04 and the Wi-Fi doesn't work. I am new to Linux. How do I go about troubleshooting/fixing this? Is there a ...
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VirtualBox Network Adapter fails to install

The Host-Only Adapter fails to install in Windows 8.1 x64 with VirtualBox-4.3.20-96997. When VirtualBox is installed, Host-Only appears in the Device Manager as a failed device. Therefore ...
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How to configure routes in Ubuntu in order to use network card just in local network

I have Ubuntu 12.04 with two network cards. Because of the security of my organization, I need to use one to connected it to the traffic within a network 10...*, and the other one to have internet ...
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2 gateways 1 nic Ubuntu

Please note that this is ONE NIC and TWO Gateways Now this solution is super easy in Windows: * Connection Properties -> TCP/IP Properties -> Default Gateways -> Add (separated by metrics) I notice ...
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How can I force Windows 7 to use specific network adapters per program?

I am using Hamachi VPN. I want to setup Windows 7 to use the Hamachi VPN network adapter for specific software on my system; other softwares should use the regular network adapters. Is this possible ...
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ethtool available network interface ports

# ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports ...
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Use 2 wireless adapters to connect to 2 WIFI networks (local and internet) simultaneously?

On my HP Compaq 6710b there's an internal WIFI network adapter. Attached to the same laptop there's also an external USB Alfa WIFI adapter. I live near campus and can pick it's WIFI signal. The ...
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How to change from Public network to Private network

First of all I'd like to say I've read topics but I have not been able to find an answer. I've had a power cut and when my PC with Windows 7 64-bit (12Gb RAM / Core i7) reboot, I've lost my perfectly ...
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Intel Network Connection: This device cannot start. (Code 10)

I have a Intel® Desktop Board DP55KG (see http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.htm), which has a Intel 82578DC Gigabit Network Connection on board. Additionally, I ...
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Linux will not activate wireless after device has been re-enabled

Using a Eee 900A netbook by Asus. By pressing Fn + F2, I can disable or enable the wireless chip on the netbook, a blue LED indicates the status. I've been able to connect to wireless networks just ...
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Why my Network Connection Properties don't show UAC prompt & settings change everytime I connect?

I can't set my network connection interface properties, UAC prompt doesn't appear anymore for only this adapter interface. I disable Netbios but each time I connect it changes back to default. Earlier ...
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Using local proxy to specify used NIC on Windows 7?

I'm running Windows 7 and have 2 NIC installed, both are connected to the Internet (nic#1 LTE, nic#2 DSL). Windows 7 will only allow me to specify a binding order and a metric on which interface to ...
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Hardware recommendation for a laptop with two NIC's (network interface controllers)? [closed]

I need a laptop that has two network cards onboard. I've tried in vein searching for such a beast. Can anyone shed some light on where I can find such hardware? It should also have a parallel port. ...
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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 ...
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Is it possible to recognise hardware (router or network card) just by its MAC address?

Just wondering if that is possible. Are there any naming conventions that would allow one to deduce whether the MAC address belongs to a router (of a specific brand), or a network card, etc..
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Is the reason for weak wireless signal on new laptop the wireless card itself or the antennas?

I just bought a new laptop ASUS N550JV. I wanted to test the wifi receivers of my two laptops (the old and the new), so I put them together and scanned for the neighboring wireless connections. My old ...
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NIC card using strange IP address

I'm using Windows Vista on a laptop, and while my wireless card works fine and takes the address the wireless router's DHCP server gives it, for some reason when I plug my (built-in) laptop NIC port ...
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Wake-on-lan only works so many times

I have Wake-on-lan configured on my Windows XP machine so that the computer will wake up from Standby. Waking the computer from Standby via network traffic seems to work a certain number of times, ...
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Ethernet to USB adapter vs USB Ethernet card?

I would like to connect two computers so that one is connected on physicall via the "standard ethernet jack" (got lost in the naming, i believe it's 8P8C) and the other will be connected to a USB ...
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Does Windows 7 support 802.3ad (link aggregation) natively?

I'm trying to understand what's needed to make Windows 7 combine two Ethernet ports into one virtual 2 gigabit port. I know I need 802.3ad compatible switch, my NAS also supports 802.3ad, but it's not ...
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Secondary NIC: what all can I do?

I was loaned a NIC which I promptly installed in my F16 workstation just to 'play' with it (using iptables and stuff). Other than forwarding packets from the new NIC to the old NIC using various ...
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how to determine driver for motherboard ethernet adapter

I have an older machine on which the OS (w2k) got corrupted. As a result, it no longer can find the driver for its ethernet adapter. The install-new-hardware wizard just identifies the device with a ...
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Suggestions for wireless adapter [closed]

I recently purchased a desktop computer and it did not come with a wireless network card. I am currently using the Belkin Wireless G USB Adapter and it is a very sub par product. It has very slow ...
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Windows 10 “Not connected - Connections are available” and “Limited” yellow warning but Working internet connection

After upgrading my dell xps 13 (2015 model) from win8.1 to win10 all worked fine really fast top notch combination, untill after a week it now shows a yellow triangle warning icon on to of the wifi ...
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What are the differences between wireless gaming adapters and straight wireless adapters?

Devices like the Xbox - with only an ethernet port and no built-in wireless - can be connected to wireless networks using a gaming adapter. How does a gaming adapter differ from a regular wireless ...
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OpenVPN, install a TAP adapter

When I try to connect to my work VPN using OpenVPN, the connection fails with the message: All TAP-Win32 adapters on this system are currently in use. Many sources suggest to look in Control ...
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6to4 vs ISATAP vs Teredo Adapters

I understand that all three adapters mentioned in the title are related to transitioning IPv4 to IPv6. ISATAP: Transmits IPv6 packets between dual-stack nodes on top of an IPv4 network. Teredo: IPv6 ...
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Can I select the adapter to bridge separate for every network adapter in VMware?

I have a host computer running Windows7 with a wired network and a wireless network. These are two separate networks with two separate dhcp servers. I created an Ubuntu virtual machine in VMware ...
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Very Slow DSL (ethernet) speed [New Interesting Update]

Very Interesting and Important Update: Due to some reason I just thought to do a complete new setup and this time I decided to again have openSUSE plus Ubuntu. So I first reinstall Lubuntu and then I ...
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How do I set up the network drivers for Windows 7 on my iMac?

I installed Windows 7 32 bit on my 27" iMac OS X 10.6.6. When Windows loaded, I couldn't connect to the internet via wireless or ethernet. It appears the drivers are not correct? I did the same ...
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Is my Network Interface Card faulty?

I've got a Dell Optiplex GX240 running Windows XP, and am having network issues with it. I downloaded and installed updated drivers from DELL, but the issue is not resolved. Windows Device Manager ...
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How can I tell which of multiple network cards is in use?

Suppose I have multiple network cards connected to my PC, how can I know which card is used for communication. For example, if I use ping 192.168.x.xxx I would like to know which card (and which ...
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How can I increase the ring buffer size of my NIC?

I want to increase the buffer size for network interface card to handle large concurrency. With ethtool I have set the buffer size to 4096 KB. But I want to increase more. Is that possible, and what ...
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How to use a Network adapter only for a specific Connection on Win7?

I've got several network adapter in my PC (from LAN, WLAN, VPN etc...) and what I want to accomplish is that some specific adresses use the VPN adapter, while all others use eiter LAN or WLAN. (So ...
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NIC stopped receiving 20% of packets

I connect to my gigabit LAN with my RTL8111C-based NIC. It's on a Gigabyte GA-P43-DS3. In the last 3 weeks I noticed that my transfer rate dropped from the usual 40-60 MB/s (using a NAS over SMB) to ...
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Kernel bypass possible with non-specialised NIC?

Is it possible to perform kernel bypass and have a NIC send data to the user space (where I will write my network stack) with no copying, without having to purchase a specialised Solarflare etc NIC?
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No interfaces defined in new Linux installs after installing BSD

A few months back, I attempted an install of PCBSD on my laptop (EDIT: Thinkpad T420). Before installation, my partitions consisted of /swap, /, and /home for an Arch Linux install, and one ...
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10 Gbps Network Card on PCIe 2.0 X8. Enough PCIe bandwidth?

Would a PCIe 2.0 X8 slot have enough bandwidth for a NIC with two 10 Gbps connections? From what I understand, each lane on a PCIe 2.0 card is good for 4 Gbps, so 8 lanes = 32 Gbps, right? Is my ...
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What is faster for multimedia performance? Leaving a NIC to do checksums or the CPU?

I noticed a NIC from Realtek has an option to "offload" some of the CPU work for checksums onto itself. However, this has some - I would say - humorous effects on opinions of people on the web: Some ...
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Installed PCIe network card - computer won't boot

I have a new Dell Vostro 460, that has onboard video, and an Dell-added a PCIe video card. It has 1 16x PCIe slot and 4 1x PCIe slots. When I plug in a PCIe gigabit network card (link. lspci: ...
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On a switched network, why do unicast packets not addressed to me reach my NIC when I'm in promiscuous mode?

When I'm connected to a switch, the switch knows which MAC address belongs to which port. So even when I'm in promiscuous mode, why do I receive unicast packets that are addressed to other MAC ...
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Onboard NIC picks wrong IRQ on startup

I am dealing with an older PC with Windows XP. Someone recently selected "Load Optimized Defaults" from BIOS and now tiny little problems have emerged. One of the problems is that the Ethernet NIC ...
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Do laptop docking stations have their own MAC addresses?

My laptop has an ethernet connection, and there's another on the docking station. Can I connect using both at the same time? Will they have different MAC addresses? I'm assuming the ethernet port ...
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CPU load, USB connection vs. NIC

In general, and understanding the answer may vary by manufacturer and model (and driver, and...), in consumer-grade workstations with integrated NICs, does the NIC rely on the CPU for a lot of help ...