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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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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What could be causing two different laptops both with Wireless-N adapters to have very different speeds?

My dad recently bought a Dell XPS 14 laptop that had an integrated Intel(R) Centrino(R) Advanced-N 6235 wireless adapter, but it appears to be known to drop connections a lot. He'll suddenly get ...
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301 views

Prefer WiFi over Ethernet

I want to use my Ethernet power line adapter in order to use Wake on Lan for my desktop PC. However, once it has booted into Windows, I want it to use my WiFi by default, as the powerline adapters ...
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How to upgrade Intel(R) 82567V-2 Gigabit Network Connection Drivers for Windows 7 64?

Problem When I go to Device Manager, under Network adapters I have an Intel(R) 82567V-2 Gigabit Network Connection adapter that has a yellow exclamation point. I am trying to upgrade its drivers but ...
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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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29 views

ethernet interfaces are sometimes renamed to 'renameX' on startup

I've installed a recent daily build of Ubuntu Trusty on several HP dl380e 2U servers. These servers have 4 x 1Gb onboard NICs. In addition, I've installed a PCIe 2 port 10Gb NIC in each server. The ...
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26 views

Multiple MAC addresses on a single network interface (Windows)

Since the other question about this (Multiple network interfaces on a single NIC in Windows) only asks about different routing, I'm going to ask this again: Is there any way to create multiple ...
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How does synchronization between two independent computer's NIC work (e.g. on Ethernet)?

I'm currently studying computer networks and the question came to my mind, how it is physically possible for the NICs of two networking computers to determine the clock rate of incoming datastreams. ...
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HP J8156A Vernier network adapter

I've got a network card, that may or may not be working that I am trying to use in my home server. Got it from ebay as "used".The card does not let the computer boot, the computer turns on, but ...
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26 views

IPConfig lists very strange tunnel adapter

I was trying to troubleshoot a different computer on my network, and ran ipconfig on MY computer for reference. One of the adapters listed is - Tunnel adapter satapi.GHGKZ.com: Google has ...
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59 views

Wireless connection behaves strangely after windows 7 fresh installation

Since I installed a fresh installation of Windows 7 Home Premium, my Internet connection behaves very strange when on wireless. It disconnects and reconnect by it self without any notice. It slows ...
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219 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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228 views

Why does Ubuntu 12.04 detect only one USB Ethernet adapter?

The problem is that I am connecting three client computers to another central computer through: the one normal Ethernet port connected to one client computer (eth0) two USB to Ethernet adapters ...
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109 views

Limited connection whenever I connect to a Wi-Fi network outside the company

Whenever I connect my work laptop to a wireless network outside of my company, the connection shows as Limited, and there is no internet access. I have tried several times by disabling/enabling the ...
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93 views

HP DL380 using HP NC522SFP NIC shows supported link modes: not reported

When using ethtool on this NIC, the supported link modes show "not reported". Any idea why this is the case? Settings for eth0: Supported ports: [ FIBRE ] Supported link modes: Not reported ...
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115 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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431 views

Speed/Duplex auto-negotiation suddenly stopped working

Today my internet suddenly stopped working and the network adapter started cycling between "Network cable unplugged" and "enabled". I googled the issued and some people suggested to modify the Speed ...
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348 views

Windows Network Bridge Connections Greyed Out

I can bridge the connection under administrator account. I have disabled the prohibit installation and configuration of Network Bridge on your DNS domain network Group Policy setting. The option to ...
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79 views

Windows 8 - LAN connection doesn't startup on reboot

I don't know what's gone wrong, but of late whenever I reboot my Win 8 Pro x64 box, the ethernet connection doesn't turn on by itself. I have to go into network settings and manually disable/re-enable ...
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180 views

Network disabled in Windows 8 PC on startup

Windows 8 64-Bit pc will not detect network on startup. Every time we have to do a "scan for hardware changes" in device manager. Otherwise it will not connect to network automatically. We did ...
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201 views

Getting Fiddler to work in a VM guest behind a proxy

I have a Mac OSX host and I'm running Parallels (but the same problem exists in VirtualBox). The scenario is that the Mac is wired into a corporate network with an explicit proxy set. The VM running ...
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527 views

Windows 8 slow network wakeup from sleep

The problem is that Windows 8 is far more slower than Windows 7 waking up from sleep if you consider network adapter. With following settings: Going to sleep and back looks like this: And ...
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268 views

Windows 8 Pro with hyper-v no network connectivity after reboot

I have Windows 8 Pro workstation with Hyper-V installed and configured one virtual switch as "External", as on attached screenshot. My problem is, every time computer reboots, network does not ...
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Hyper-V VM Static IP - 2 IP Addresses

I'm trying to configure a server with virtual machines on Windows Server 2012, after finishing the installation of windows in the VM, I try to configure the IP as static, but a second address is ...
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121 views

Ubuntu 8.04 NIC change

I had a small box running ubntu 8.04 on it and it broke down. I moved the hard drive from it to a new box running different hardware just to see if i might be lucky and get a quick fix with no need to ...
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697 views

After disconnecting my vpn, why do I have to reset my network adapter to revisit certain sites?

If I create an encrypted connection to my VPN host (via openVPN) and tunnel all internet traffic through it everything seems to work fine (i.e. Websites think my ip is that of the remote server). ...
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49 views

Port 80 Drops ~50% of HTTP Requests, But Other Ports Work Fine.

I'm in a new work environment and I've encountered the most aggravating issue in my existence. Just about every other page doesn't actually load. It's driving me crazy! Everyone in a while, it ...
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238 views

Win7 Pro x64 task manager hangs when restarting explorer.exe after waking from sleep

I have a desktop running Windows 7 x64 Pro, set for Hybrid Sleep on a wired network. Wakeup is only enabled from the keyboard (wake on mouse and Wake-On-LAN are both disabled). Sometimes when it ...
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110 views

AM2NF6G-VSTA Motherboard NIC connection

I own a ASROCK AM2NF6G-VSTA motherboard. My integrated network card gives me the error 651 whenever I try to connect using a PPPoE connection. It always stays at 0 for received bytes but the sent ...
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141 views

Linux Mint gets stuck when using wireless card “rt73usb”

I'm changing Linux distributions a lot, wishing to resolve my problems with the wireless card identified as rt73usb, like explained in this question of mine. Now I'm using Linux Mint 12. I noticed ...
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2k views

Realtek PCIe FE Losing Connectivity in Win 7 Home 64-bit

I am having an intermittent problem with my network connection dropping out for no apparent reason. When it drops, I still see the lights blinking on the NIC card, but cannot pass packets even to the ...
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717 views

Wired network adapter doesn't function properly when starting Windows

Every time I start my computer, my wired network adapter stops working - this includes a cold start and resuming from sleep. If I head over to Network and Sharing Center and click Troubleshoot ...
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157 views

Troubleshooting Desktop That Can't Connect to Internet through Any Adapater, Even on Different OSes

I have a Windows 7 machine that also has Ubuntu on it. Yesterday the NIC spontaneously crapped out. I went and got a Dynex PCI NIC and set it up, my computer now finds networks but lists them as ...
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137 views

LAN card not working sometimes with windows

I have the following scenario MODEM + (FE)(Cable A) --> (WAN) ROUTER (LAN)-----(FE)Cable B----COMPUTER Now i have two LAN cards on computer 1)CARD A is build in Motherbord 2)CARD B is NIC ...
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245 views

Alias network adapter in Windows XP

I use a VPN channel for an online banking client. This channel is implemented as an NDIS filter installed on the outbound network interface which gets activated when you insert the smart card. When ...
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122 views

Laptop takes 1-2min for network connection to start on wakeup, even when wired

The first thing I did after purchasing an HP Pavilion dv6, was replacing the HD with an SSD and installing Windows 7 Home Premium on it (I'm not sure if the issue occurred with the original drive). ...
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179 views

One computer on my network won't connect to the network without a reboot

My computer is on a local network that contains about 300 PCs. NIC is not built-in (i.e. the built-in NIC doesn't work). I don't know whether my IP is assigned staticly or by DHCP. Every time my ...
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346 views

Getting Realtek drivers to reach Gigabit speed under Ubuntu is nigh impossible

I have a HP Touchsmart TM2 2105 laptop, quite recently bought. The NIC is Gigabit speed capable, with a Realtek R8168 chipset. I installed the drivers from Realtek, it works, ethtools indicates ...
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Warped Motherboard, dead NIC

Well, I did something stupid. Last March I rebuilt my computer. For some reason or another one of the mounting screws was not set properly, resulting in the top of the board bending at an angle ...
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348 views

Need to reset network adapter after sleep (Vista)

I have a Dell Inspiron M1330 running Windows Vista Ultimate. Ever since I moved into a new apartment (and had to start using a hard-wired connection via Ethernet) I have had to reset the network ...
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181 views

Replacements for Intel WiFi Link 5100

The wireless adapter in my laptop, the Intel WiFi Link 5100, has been really flaky lately. I've had this laptop for about 8-10 months with no issues. But over the last week or so, getting it to ...
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363 views

Windows 7 not recognizing second lan card?

I just got a second LAN card, because I want to share my internet connection with my laptop. I put the LAN card in the computer, but it doesn't recognize it. I tried Everest, but it still does not ...
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8 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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Use devcon to create multiple loopback adapters

I need to create multiple loopback adapters on a single box. I can do this manually using Device Manager, but would like to automate this using the devcon.exe utility. When I call devcon install it ...
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Does a VirtualBox/CentOs need two adapters to work properly ?

I have a Windows 7, 32bit, HP Laptop. I have CentOs 6.5 running on VirtualBox 4.3.10. Here is my eth0 config. Code: #vi /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 ...
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How to use netperf on specific NIC port?

I have two servers, SERVER and CLIENT and each server has its own onboard 1 GbE ports, and its own NIC with a 10 GbE port. SERVER and CLIENT are interconnected on both a 1 GbE switch (administrative ...
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Are the network interface card same in all cisco devices

I have old cisco 2600 routers but they dont have any network interface card My friend has cisco pix firewall which has network card attached with 4 ports so can i pull the network card from cisco ...
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Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
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Using DHCP to get multiple IP addresses on single NIC on RedHat

I am trying to obtain multiple IP addresses using the ISC dhclient supplied with Red Hat Enterprise Linux 5 in order to provide the IPs to multiple applications, which will run on separate virtual ...
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Network adapter settings via cmd

How to open setting of the specific network adapter via commandline in Windows 7 Enterprise? I'm under domain user but also have access to local administator user. Under domain user I have no rights ...