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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Windows 7 x64 crashes upon account logon

I'm posting this here because my problem is very specific. I had logged into Windows and I noticed something weird: it shows my network card is initializing/recognizing my connection, but it just ...
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Wake On LAN using Magic packets is not working in Windows 10

Even after configuring all the settings like Network Adapter Settings BIOS setting Disabled Fast Startup Telnet and Port Settings I can't able to wake up the machine with Windows 10 OS. Is ...
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a machine has three nic connected to different routers, how is information transferred/Requested? [on hold]

In this situation, how does it connect to the network? How do my interfaces know to send requests
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25 views

A Nic and a USB wireless adapter, when one is on, the other stops working

I have NIC and wireless USB adaptor. Previously, both accessed separated networks and worked together. The wired nic is connected to a piece of equipment. I have it on a submask of 255.0.0.0 with a ...
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3answers
30 views

How to set/change IP for intel(R) 82579LM gigabit adapter?

I want to set static IP to my wireless network adapter, but I get this error: [] so I want to change IP address of this adapter. I should set my wireless IP to 192.168.1.157. Also I restart my ...
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16 views

Virtual nic on windows7 (no loopback)

How could I create virtual NICs (as if I had n number of network cards in my computer) without using a loopback adapter, as the answers to this question says? Creating a virtual NIC on windows 7 ...
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39 views

Network adapter not recognised

I've had to re-format my PC and installed Win 7 Pro. Got everything installed but Network Adapter not being recognised so I've got no internet. I don't have the motherboard driver CD so I attempted ...
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13 views

List of router to allow the editing SNR

I would like to buy a modem (or router) that allows me to edit, through telenet, the SNR values. I read on internet that I will get something plus in terms of prestations of my ADSL line. Does someone ...
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23 views

How to make VPN use only 1 of the 2 NIC?

I know it sounds a bit dump, but here is the case, I work in China a lot and we all know, China blocks gmail / facebook / twitter... etc, to access these tools along with my company network, I would ...
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35 views

Windows 7 - Blue screens, fresh install, corrupt downloads

I'll clarify the title. I had a Windows 7 Ultimate installation running just fine about 2 months ago, aside from the fact that I would get BSOD's (Blue Screen of Death) every 2 weeks or so. I wanted ...
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25 views

Unstable connection on Windows XP and Intel I350

I am working for a company developing and maintaining some QA system for industrial customers. When running, the system is receiving about 1.6 Gbps from 12 different sources using two Gigabit-NICs. ...
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59 views

Possible to share ethernet connection over wifi without hosted network support?

I have this cute Intel WiFi Link 4965AGN wireless adapter which is obviously not supported by hosted network: C:\>netsh wlan show drivers Interface name: wireless2 Driver : ...
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25 views

What kind of board does an XMC network card fit in?

I'm looking at 10GbE network cards, and most of what I find are XMC format, like the XPort3300 (just an example). I'm trying to understand how these cards fit on a board. I'm very new to low-level ...
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76 views

how does vswitch work with the physical nic in vmware?

It is known that VMs, through their vNIC connect to vSwitch which is in turn connected to the physical machine or ESXI host's network adapter (vmnic). The vmnic is then connected to an actual L2/L3 ...
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19 views

IP for virtual interface gets assigned to physical interface

I'm configuring a physical NIC and a virtual interface based on it as follows in /etc/network/interfaces: auto eth0 iface eth0 inet dhcp auto eth0:1 iface eth0:1 inet manual post-up ifconfig ...
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1answer
28 views

Ipv4 properties tab greyed out

I am facing this problem of IPv4 and IPv6 properties tabs greyed out and not able to change the settings of the same. I have tried many solutions given online such as netsh commands and antivirus and ...
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27 views

Network Adapter no longer detected after graphics card removal?

Last night, I noticed that my crossfire wasn't working properly. I did some tests and found that all my games run much faster and at lower temperatures without it. So I decided I'd give my extra card ...
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21 views

NIC shows cable plugged but no cable is connected

My computer is not connected to any Ethernet. Cable is not even plugged in. But Windows 7 show status of unidentified network. It was a problem with the driver and I booted to my Ubuntu installation. ...
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1answer
100 views

Can't added back my client for microsoft networks in Windows 10

I can't open network shared folders. Got to looking at my NIC properties, and I found that I was missing everything buy IPv4 and IPv6. So I started to try to add back to client, and protocol. I can't ...
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72 views

QEMU-KVM macvtap nic passthrough with which MAC address?

I want to give a host nic to a guest in macvtap/passthrough mode but, which MAC address I've to use for correct frames inter-transmission? The real address (of physical nic), or the virtual one? ...
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44 views

How to force only Chrome to send network traffic through selected IP interface (not system default) on Windows 7?

I have connected to multiple network interface (like LAN, WiFi, USB modem, VPN) and I want Chrome to use the DNS servers from selected network (BUT NOT SYSTEM DEFAULT means local network) and also ...
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49 views

Enabled IPv6 Nic causes network connectivity issues

I am having issues with network connectivity while PC NIC's have IPv6 enabled. My organization does not utilize IPv6. Actually, the network admins here don't have any clue how to. I have come to the ...
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30 views

Why does my network adapter not appear in WinXP Device manager?

I'm sure My IBM thinkpad has a network adapter as I used it for many years. However, the last time I used it is approximately 8 years ago. I do not know if something touched it or did something to it ...
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2answers
69 views

In Virtual Box, how do you know which NIC is which from the linux command line?

I've run into a problem a few times now where I'm installing linux in a virtual machine, and all of my interfaces look like "enp0s3" or "enp0s8" ect. In one test, I was running a VM with 4 virtual ...
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2answers
69 views

Why does a ping flood wake up a PC, while a single ping does not?

I just noticed that when you flood-ping a PC that is in sleep-mode, it will wake it up while a single ping or multple pings per 1 sec does not wake it up. Wake up on lan/wan is enabled. What is the ...
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63 views

Intel Wi-Fi Adapter Randomly Quits Working

I'm using an Acer Aspire M5-583P-6428 running Windows 8.1. For quite a while, I've been having a strange issue with my Wi-Fi adapter. Said adapter is a built-in Intel® Dual Band Wireless-N 7260. The ...
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48 views

Removed Network card from Device Manager (without Driver uninstall) now Windows wants driver Reinstal

I wonder if someone can help me. I have an (Dell) Alienware R4 ALX Desktop PC, purchased with Windows 8, but since updated to Windows 8.1. On Sunday, in effort to resolve another issue (which I ...
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How can I create an isolated network with 2nd NIC on Win 7?

Here is my situation: My test PC has an existing NIC, wired connecting to our internal network, no internet access. the ip range is 172.16. Now I need to create an isolated wifi network, also no ...
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2answers
55 views

Can not go to the router admin page through 192.168.1.1

Just install the router and can not access to router admin page when I go to cmd and type ipconfig, it show something like ipv4 1.64.23.97 child network mask 255.255.255.255 default gateway 0.0.0.0 ...
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25 views

Wireless Internet inconsistently Slow

My brother in myself are both using the D-Link DWA-171 Dual Band USB Adapter with a router. The router does in fact support dual bands as well, so sometimes depending on which is faster you will see ...
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109 views

Does Wake-on-LAN (WoL) depend on the motherboard or the network card?

This question was spurred by discovering the Acer M670G seems not have an Wake-on-LAN (WoL) settings in the BIOS and in general, wondering whether WoL is controlled by the BIOS/NIC or the OS. One of ...
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25 views

Archer T4U adapter cannot Enable

I cannot enable my Archer T4U USB Adapter in my control panel. It will go to enabling then say its enabled, after that I can't even use it, it just say's its disabled. However, when I go into the ...
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94 views

Can't get jumbo frames enabled with Mellanox ConnectX-3 VPI card on FreeBSD 10.1

I have a Mellanox ConnectX-3 VPI card, MCX354A-FCBT, which is configured in 40Gbps Ethernet mode on both ports. It's connected via two passive DAC QSFP cables to an IBM switch. Everything works for ...
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20 views

Hyper-V - how to make network cards appear to Guest OS' as “the same”

Few days ago I transfered physical machine to virtual, so Windows detected a bunch of new hardware. After that I installed integration services, which made it again detect some more new hardware. I ...
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39 views

How can I share the Wireless connection across my LAN, and still access LAN locations

At the moment I have the following setup (all windows 8.1, router: BiPAC 7800N): Generally, 50-60% of the time, I use the router to connect to the internet (1.5mbs), but usually when working I ...
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1answer
36 views

No networks found upon returning to original location

The oddest thing is happening with my network connection. I can work on it fine at home, and then I bring it to school and it connects automatically to that network too. But then when I get back ...
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1answer
47 views

Gigabit NIC only connecting at 100Mbps

We have a desktop PC in a field office that only connects to the network at 100Mbps even though the GB card seems to be functioning perfectly. We have plugged in other machines into the same jack and ...
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27 views

Why my HostOnly adapter stopped working on my virtualbox guest and I cannot connect to it?

Basically my setup is: Windows 7 laptop with VirtualBox with Centos6 installed. I have 2 adapters enabled on guest: 1 NAT for internet access and 1 HostOnly to connect to this machine (for e.g. scp ...
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1answer
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How do I prioritize one network interface over another, in the context of 'lower level' windows functions?

Alright so I think I'm at the right SE site... We'll find out in a minute; but my apologies if I'm not. Anyway... I have a couple of network interfaces on this system ( and a couple at my place of ...
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1answer
20 views

Virtual eth-adapter in networking-configuration

I have on my Debian en eth0-interface and I need the interface to listen to other IP's. I know I can create it with the following command ifconfig eth0:1 10.10.10.20/24 With this command everything ...
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1answer
72 views

Laptop's wifi only works if it's connected to mobile hotspot

my laptop started acted weirdly, it's wifi only works if i connect it to my mobiles hotspot, but it doesn't connect to any other type of wifi networks, tried many different locations, many different ...
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1answer
41 views

NIC MAC address is different than it should be

I have cheap Tenda W150M router that is working as a WLAN card in Client+AP mode. The router MAC Address and WLAN BSSID are xx:xx:xx:xx:xx:68(those are listed in the router admin page). Now on my main ...
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1answer
47 views

Trouble bridging two Ethernet connections on Ubuntu Server 12.04

My Setup: Dell PowerEdge 2800, Ubuntu Server 12.04, 2 Ethernet ports Dell XPS, Windows 7 Home Edition, 1 Ethernet port Router <--- eth0 ---> PowerEdge <--- eth1 ---> XPS the objective here ...
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60 views

In Windows 7 how to select network profile for internet access?

At our office, the ADSL modem broke down, so I enabled WiFi access point on my smartphone to connect to internet that way. It works, but only if I disable the regular LAN, i.e. disable the network ...
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51 views

How to verify that all the pins on a NIC card are indeed working?

I have a laptop here that had some bent pins on its NIC, my boss straightened them out, but there's still one pin that when I look at it, appears a little flat, like it won't touch the end of the ...
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66 views

Unable to connect to internet from Centos VM

I am using VirtualBox 4.3, I have installed Centos 6.3. I have two adapters attached. 1) NAT 2) Host-Only I want to be able to setup a cluster of 3 machines which can talk to each other and also be ...
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239 views

Windows 8.1 ethernet adapter properties are not properly saving

I have a wired network adapter installed on my laptop, it is a built in card and it works with no problems. The driver is installed and is the correct driver. I go into the network adapter properties ...
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30 views

Windows force different channels for multiple wireless NIC

I have multiple wireless NICs on my Windows 7 machine and want to load balance across them. They are set up with the same metric and streams are successfully split between them. However, the link ...
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1answer
66 views

How to use wi-fi / bluetooth as adaptapter on my PC(desktop)

I know the USB Tethering mode in android (Ya, I am talking about android as OS) but don't know how to use it to create a LAN to connect with my Laptop (For gaming and file transfer porpouse) So,I ...
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Where are PC's NIC settings saved (i.e. custom MAC or power management options)?

Recently i learned how to enable and use WoL, but some details about it's underlying mechanisms are still mystery for me. In this answer on serverfault was said, that WoL is OS independent ...