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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Bluetooth adapter online, but not discoverable and cannot find anything in Linux

I recently purchased an Asunflower Atheros AR5B22 300M Wireless Wifi Bluetooth 4.0 PCI-E Card Desktop Adapter to add wireless and Bluetooth support for my desktop. While the WiFi functionality is fine ...
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Dodgy NIC causing good NIC to ignore wake on LAN magic packet

I'm assuming this is the case, because it's the only thing that's changed. I have an older motherboard with an on-board gigabit NIC. This failed a few months ago - the hardware just didn't appear to ...
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201 views

Windows 10 creates many network adapters automatically

I have upgraded to Windows 10 last week and I installed the latest Virtual box 5.0.2, after upgrade. Now there are too many Network adapters in my Windows. I tried uninstalling them, but they ...
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193 views

Computer won't boot with Intel 10Gb NIC installed

I'm attempting to install an Intel X520-DA2 10Gb converged network adapter in my computer and the machine will not boot while the card is installed. The computer powers on, but the BIOS splash screen ...
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33 views

Setting up PFsense for test network

I want to test pfsense. I have a network with a established sonicwall router right now. I want to test pfsense within that network. The issue I have is with setup. I can't get pass the part where its ...
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41 views

NIC on PCI bus only works when attached to POE supplying network

This is a strange one.... I have a PC with both an on-board NIC and an additional NIC in a PCI slot. The NIC in the PCI slot will only create a link when attached to a network which supplies POE. ...
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4k views

local area connection doesn't have a valid ip configuration

I get the following error after running diagnostic tool: local area connection doesn't have a valid ip configuration then I ran ipconfig \all in cmd and got the following: Microsoft Windows [Version ...
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4answers
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Get active network interface on Windows

I'm developing an application that provides a UI to windump, the packet sniffer. Windump has a "-D" parameter that lists all network interfaces it can find, and then you can specify which interface to ...
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411 views

Windows 10 Unidentified Network Issue

I am running Windows 7 on my PC but I installed Windows 10 Enterprise as a virtual machine using VMWare Player. My Network Adapter setting on VMWare are set to "NAT:Used to share the host's IIP ...
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3answers
388 views

Network not working after Windows 10 Upgrade

I recently installed Windows 10 on my Lenovo G500 laptop, but after that i found that none of the wireless network and the local area connection is working. Any suggestions where i can start ?
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100 views

(VirtualBox) Host-Only adapter keeps disappearing

Whenever I add a Host-Only adapter in Network under preferences it disappears after pressing OK. Steps: File > Preferences > Network > Host-Only Networks > Adds New Host-Only Network vboxnet# ...
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71 views

Nic not showing up in device manager

I recently installed a new mother board and hard drive and have had trouble installing my wireless network card. On my old computer it worked fine but it seems it is not appearing in the device ...
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318 views

Wi-Fi networks not detected on Ubuntu 14.04 LTS (rtl8723be)

I have an hp pavillion 15-ab030tx and I recently dual booted windows 8.1 with Ubuntu 14.04LTS. No Wifi networks are being displayed, but if I host a hotspot from my phone it is visible and I am able ...
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9k views

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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2answers
58 views

NIC can't get IP address/connect all of a sudden

As the title implies, I'm having NIC issues. Anyways, as of last night it was working perfectly. Then this morning it was having issues, with Windows showing "No Internet Access". I rebooted the ...
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228 views

Connecting to two Networks with different DHCP servers

Ok, So at home I have two wired Networks (one with internet access and one that doesn't) I have Multiple Network adapters on my PC and I want to use one into one network and another to the other ...
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4answers
7k views

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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42 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
194 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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81 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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1answer
367 views

Cable unplugged after NeoRouter connection disabled once

Network adapters can be disabled and then enabled again in Windows. This doesn't work for the NeoRouter network adapter, which is a VPN shell. What happens is that once disabled, this adapter can't ...
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37 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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1answer
4k views

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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30 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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65 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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193 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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44 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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1answer
2k 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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575 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
510 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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1answer
109 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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98 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
487 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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90 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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446 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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260 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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46 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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1answer
12k 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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2answers
439 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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360 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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262 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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184 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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2answers
74 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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726 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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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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1answer
105 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 home.....
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76 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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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
4k views

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: '...