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 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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network adapter driver problem in Windows 7

I am facing problem with my Windows network adapter. It detects all the available networks but it shows "Limited Access" for the network I wish to connect. On diagnostics it gives "The wireless ...
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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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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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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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28 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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How to get rid of auto-generated sequence number in network's device name in Windows?

Every time one plugs in the same usb wireless adapter in a new usb port, Windows creates new network device with auto-generated sequence number which looks like this Wireless-N USB Network Adapter #2, ...
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1answer
14k views

I have LOTS of TAP-Win32 Adapter OAS and TAP-Windows Adapter V9

What are these, and what are they used for; how do I get rid of this? Because I haven't got OpenVPN or any other VPN-client installed on my computer (to my knowledge). I am not sure but I thing this ...
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Driver for wireless card WNC-0301 (Level One) for XP 64 bit

I looking for drivers for network wireless PCI card WNC-0301 of Level One for Windows XP 64 bit. The one I found on company's site is zipped with password. In short, do somebody know where to find ...
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21 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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869 views

Connecting to Bluetooth Personal Area Network Fails

I'm trying to connect to my phone's Bluetooth PAN but nothing happens when I do. I click the button that says "Connect Using" which gives me two options: [Option 1] "Direct Connection" ...
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Ethernet connection for TP Link powerline adapters

Have a pair of TP Link TL-40201P adapters. Units are paired and lights illuminated. Cable connection plugged in but only my router internet connection showing on network connections. How do I go about ...
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47 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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1answer
406 views

PC flooding & crashing network switch only after it's shutdown

I discovered this problem because EVERY SINGLE TIME I left the house my Internet connection would go down and I would not be able to remotely access my netowrk. I installed Windows 8.1 RTM on my ...
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2answers
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My internet speed wont run at 1.0 Gbps on my Realtek PCIe Family Controller

I have an asus Gigabit Router and a gigabit NIC (Realtek PCIe GBE Family Controller) witch is running at 100Mbps rather than 1000Mbps (1.0 Gbps). When I use an old laptop on the same Ethernet ...
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22 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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16 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
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Network card (link-status LED) still active after shutdown from Windows 7 (but not from XP)

When I shut down Windows 7, my NIC remains active and the link status LED on the router remains lit. When I shut down Windows XP, it does not. Further, rebooting XP causes the NIC to shutdown as well, ...
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How to reinstall the host-only network adapter in VMware 7

I've this problem when I want to use "Host only" network adapter in VM-Ware 7.0 this is the error message: The host-only adapter driver does not seem to be running. If you have not rebooted ...
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1answer
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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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23 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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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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41 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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41 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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39 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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194 views

How do virtual servers interact with the host machine's networks?

I've had this question long ago and still I've been unable to find a correct answer to it. I know it's possible to run several virtual machines. Let's say that I'm running Windows Server 2008 R2 with ...
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27 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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10k views

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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54 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
50 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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56 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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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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21 views

Are these wireless NIC integrated or not?

By integrated wireless adapter, does it mean it is integrated to motherboard? By discrete wireless adapter, does it mean it is a standalone card? Are the following wireless adapters integrated or ...
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28 views

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
51 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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225 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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23 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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How do you check the current duplex value of a network card set to Auto negotiate in Windows?

I would like to know what duplex (half or full) my network card has negotiated with a switch when they are both set to auto configuration in Windows.
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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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21 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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1answer
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What is wake on pattern match in network card preferences?

I know the Wake on LAN standard, but I don't understand what the wake on pattern match option means. What does this option mean?
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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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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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5answers
16k views

Why aren’t there any USB 3.0 to Gigabit Ethernet adapters out there?

I’m looking for an adapter that will let me use a USB 3.0 port as a Gigabit Ethernet port. This is proving surprisingly hard to find! Is there some reason why this product is either unavailable or ...
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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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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
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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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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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2answers
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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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33 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 ...