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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Using iw to decrease the txpower of a wireless nic

Any search on the internet reveals only how to increase your tx power, and only by changing your region. What I want to do is programmatically decrease (and increase) the tx power of my card but using ...
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Is there a way in windows to force/encourage a program to use a specific NIC (not as a developer)

I have multiple network cards, and can use more than one of them to connect to the internet. It is simple to force connections to a specific target IP to go through a specific NIC, using the route ...
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768 views

Problems external pinging second interface on two NIC two subnet Windows 7

I have this configuration working fine with Linux, but Windows puts up a nasty fight. The Windows 7 box is setup with two NICs, each for a separate subnet. NIC 1 is the primary interface and has ...
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261 views

How to route traffic from NIC1 to NIC2 when both NIC's are in different subnets?

I am implementing anycast ip on multiple servers which have 2 NIC's installed NIC 1 is connected to the production LAN with a subnet and a Default Gateway (automatic registration in DNS enabled for ...
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207 views

Windws - DNS for two NICs - one with hosted network

Hi I have a PC that runs a small web app (wamp based) and invites the user to take it's smartphone to use it. For that we use 2 wireless connections; - built-in: The wifi card with windows 'wireless ...
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75 views

NIC Remains Active After shutdown

Windows 8.1 during shutdown the ethernet adapter light goes out but comes back on after a second. Power is off but the adapter light is on and there is link activity. This does not happen in sleep ...
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316 views

Intel 10Gbps card bandwidth

I have an Intel 10Gbps card that has the 82599 10GbE Controller. The card has two ports in it. The datasheet of the controller says it supports PCIe 2.0 (2.5 GT/s or 5.0 GT/s) Now, according to PCIe ...
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320 views

How to configre network card on centos?

I have a fresh install of Centos on a machine with two NICs, one built-in and another one installed in PCI slot. However in the network settings I get one shown as wired connection picking up IP from ...
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1answer
433 views

Single external antenna on multi-antenna WiFi n-enabled network card

I want to buy a PCI WiFi card, that supports networks in n standard (TP-LINK TL-WN851ND). It has two antennas, and it supports MIMO feature (yet I don't know if it's the standard one, or propertiary). ...
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83 views

definitively determine the primary physical LAN port (device0)

Is the device with the lowest DeviceID a reliable way to find the first LAN port on a machine with 2 ports? I have been searching for a way to deterministically get the first LAN port across our ...
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135 views

Need help understanding network interfaces on my machine

I do not understand why wireshark and the device list on my computer do not show the same set of network interfaces. Also, I am not even sure what some of the interfaces are. Here are the reports: ...
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216 views

Intermittent connection drops on Win 8.1

This is a laptop system. I currently have an issue where my network connection will drop intermittently for anywhere between 5-15 seconds at a time. This is enough to disconnect me from anything I'm ...
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1answer
264 views

adding a nic to a linux system

I've just bought an HP NC360T Dual Port Gigabit Ethernet Adapter PCI-E for use in a linux box. I can't seem to see the device on the system. I've used the lspci command to display a list of items on ...
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38 views

Windows 7 network adapter fails to start

I need to restart my Windows 7 computer at least 3-4 times to get my local area connection active. I have tried every option related to power but it hasn't helped. I have the drivers installed, but it ...
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69 views

I want backdoor access via intranet but none via internet - easy solution?

I see my new server has two cards and wonder if I can plug the internet into one and an intranet into the other. I only want access to the OS and program files and MySQL from the intranet side. ...
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1answer
120 views

Is there any way to determine if the router is forwarding WoL packet to the NIC card while the computer is turned off?

I am having hard time figuring out whether the problem is with the router not forwarding the packets to the NIC OR the problem is the NIC not waking the PC or other hidden settings that are preventing ...
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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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2answers
1k views

Why does Firefox not auto-detect the proxy after upgrading to version 31?

My Firefox cannot detect the proxy any more after upgrading it to version 31. The proxy setting inside Firefox network option is Auto-detect proxy settings for this network. Before upgrading to ...
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2answers
160 views

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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1answer
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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514 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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55 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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292 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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25 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 ...
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1answer
190 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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89 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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82 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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331 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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3answers
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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230 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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1k views

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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1answer
260 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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110 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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1answer
338 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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160 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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1answer
88 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: ...
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582 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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2answers
3k 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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0answers
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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1answer
158 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
90 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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2answers
551 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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1answer
157 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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116 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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1answer
265 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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106 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
911 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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1answer
361 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.