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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Wifi doesn't work - system or hardware issue?

I have a Dell Latitude e360 laptop (64-bit arch) that previously had 32-bit Windows 7 on it. Wireless worked beautifully on it. It has a slide button on the right side for manually turning the ...
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477 views

HS Internet connection much slower after registry/adapter tweaks?

Recently (according to speedtest.net log-3 days ago) my HS Internet connection (ATT Uverse 12Mbps down plan) slowed down dramatically after I attempted tweaking registry and adapter settings in Win7 ...
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1answer
246 views

Which device should I adjust DNS server settings on, receiver or LAN card on motherboard?

I use ATT Uverse with a 12Mbps down and stinky 1.5Mbps up. My question is as follows: I realized remembered recently that ever since I purchased a new computer and network receiver, I never adjusted ...
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649 views

Lenovo IdeaPad Z580 wireless card driver for Fedora linux

I installed Fedora 17 on my Lenovo IdeaPad Z580 laptop, but the wireless card is not showing up when I do sudo iwconfig. I am quite sure that it is only a driver issue, because when I boot into ...
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109 views

using wireless with LAN connection active

Is it possible to run a wireless connection but still remain connected to your local lan? The desktop has wireless and i wanna use wireshark locally to mess around on my wireless but want to remain ...
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2answers
87 views

RHEL NIC missing

I have a RHEL server with 4 NICS. I bound eth2 and eth3 as bond0. However, I don't know how to unbind the two NICs, so I just deleted ifcfg-bond0. Then I entered service network restart, and after ...
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1answer
80 views

NIC works on Ubuntu, but not on Windows

I have a PC (with Windows 7) which its network adapter didn't work fine. The network adapter leds used to blink and Windows recognized the active connection, but it couldn't get a DHCP address from my ...
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0answers
300 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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1answer
6k views

Use 2 wireless adapters to connect to 2 WIFI networks (local and internet) simultaneously?

On my HP Compaq 6710b there's an internal WIFI network adapter. Attached to the same laptop there's also an external USB Alfa WIFI adapter. I live near campus and can pick it's WIFI signal. The ...
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1answer
324 views

IP checksum offload

I recently updated to Windows 8 and get alot of invalid packet transfers. It says "Ip checksum offload?" (Wireshark) and most of my packets get lost. The checksum is 0x00. I also updated my NIC ...
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1answer
5k views

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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0answers
2k views

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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4answers
8k views

Can a desktop (windows 7) Wifi adapter serve as a Wifi Access Point (not ad-hoc nor bridge)?

I was reading the many differences between Access Point, Bridge, Ad-hoc or hot spot networks, and as you may tell from the title I'm a bit confused. From my understanding based on the their difference ...
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0answers
2k views

LAN connection not working when cable plugged after removal

I am facing a weird problem recently. When I reboot my computer with the LAN cable plugged in, it's connected and everything works fine. But when I remove the cable and plug it in again, it detects ...
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0answers
134 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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1answer
779 views

Very Slow DSL (ethernet) speed [New Interesting Update]

Very Interesting and Important Update: Due to some reason I just thought to do a complete new setup and this time I decided to again have openSUSE plus Ubuntu. So I first reinstall Lubuntu and then I ...
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33 views

USB stick connection

I had purchased vodafone USB stick few months ago. At presently I am not using it, so I disconnected the connection and the dongle is there with me as it is. I tried to use other sim of other network ...
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1answer
39 views

Network Failures (software tester) [closed]

I have one network with - / +50 computer. Lan and last days, has Apparent fail. Don't make any change the network. Apparent fail moments by the network, and does not understand why. That is there ...
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2answers
2k views

what is the difference between a host adapter and network card?

what is the difference between a host adapter and network card? I know that a netword card is the electrical circuits in the computer where you plug your ethernet cable into in order to gain internet ...
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3answers
1k views

Problems when trying to connect to a router wirelessly

The situation - At my girlfriend's parents' place there are six Windows 7 devices that are wired or wireless connected to a router: 3 dekstops and 3 laptops. There are also several smartphones using ...
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1answer
237 views

MAC address ends with FF:FF:FF

My PCs MAC address ends with FF:FF:FF. I am little confused about this address. As per my knowledge MAC address is of 12 Hex digits (first 6 correspond to Company and second half to a unique NIC). And ...
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1answer
266 views

How to name a newly added NIC in Linux

I'd like to name a newly added NIC as eth4. How can I do that under Linux? To be specific, the distribution I use is SUSE, SP1. I guess there is a one to one mapping between the NIC hardware and the ...
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1answer
73 views

Use wired LAN adapter by default

I am trying to find out if there's a way to set up network adapters so that if 2 are connected with network and internet access it will choose one over the other. Scenario: I have seen several ...
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4answers
25k views

Wifi Adapter not working in windows 8

I have Dell Inspiron 15R N5010 with the Network Adaptor card as Broadcom 802.11n Network Adapter Provider : Broadcom File version : 5.100.245.20 Driver Provider : Microsoft Digital Signer : ...
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1answer
322 views

Software Diagnostics Tool recommendations for Debugging a Windows 8 freeze

I've had my HP Pavillion dv6 laptop since last November - and it has had 8GB RAM and a 256GB Crucial M4 SSD installed since the start. I use it for software development and it's had a Windows 8 RTM ...
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852 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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4answers
3k views

What causes partial connectivity through wireless adapter (no internet, but can see other home network PC)?

I recently bought an Asus X401A laptop. For some reason, I cannot get internet access on the wireless connection. The wireless connection succeeds and I can see other computers on the network once ...
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1answer
791 views

Unplugging ethernet cable without disabling NIC

Is it possible to configure the OS (Windows XP or Linux) or the NIC itself so that the NIC/interface remains enabled when the ethernet cable is unplugged? Often, especially when I'm tinkering, it's ...
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1answer
254 views

Why my Network Connection Properties don't show UAC prompt & settings change everytime I connect?

I can't set my network connection interface properties, UAC prompt doesn't appear anymore for only this adapter interface. I disable Netbios but each time I connect it changes back to default. Earlier ...
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1answer
398 views

How can I connect to a VPN and keep my internet connection with my second adaptor?

I have a WinXP with 2 network adapters and I sometimes need to connect to a VPN network. But When I do so, I loose my internet connection. This is not so bad if I'm at the office, but I remote in to ...
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1answer
423 views

my windows xp sp3 diagnostick:windows could not detect any wired or wireless network cards installed on your machine [closed]

Problem: cant connect to internet with my new installation of windows xp sp3. Details: I have ubuntu in pc that worked with wired internet. I format all disk and install Windows-XP sp3. I have ...
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1answer
536 views

NIC: Changing Link Speed & Duplex to Full Duplex Is Drastically Slower

I have an old Win Xp box with a 100 PRO/100 VE NIC and connecting to a Win 7 box with gigabit NIC via an ASUS gigabit router and peer to peer. I was getting 76% network utilisation on the XP machine ...
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1answer
64 views

Not able to connect to the wired network. Wireless connects fine.

I am not able to connect to the wired LAN from hostel rooms. I am able to connect to the wifi connection. I have checked that the NIC is working properly by connecting two computers with a crossover ...
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1answer
301 views

Slow Bios Check After plugging USB Device

i am having a problem with booting my PC...After plugging my wireless network adapter in a usb port(does not matter which), it takes 30 secs to pass the bios check and start windows loading. If I ...
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0answers
55 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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1answer
432 views

Using local proxy to specify used NIC on Windows 7?

I'm running Windows 7 and have 2 NIC installed, both are connected to the Internet (nic#1 LTE, nic#2 DSL). Windows 7 will only allow me to specify a binding order and a metric on which interface to ...
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2answers
12k views

Increasing link speed on OpenVPN (bandwidth)

I have bought a tunnel service by using OpenVPN. For a year I've had 10 Mbps max upload/download speed but now I've bought an additional 20 Mbps making the available total bandwidth 30 Mbps for me. ...
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4answers
1k views

Use-cases for assigning multiple IP addresses to 1 NIC [closed]

What would be some of major use-cases in which you would want to assign multiple IP addresses to your NIC? Knowing of any standard/well-known 'gotchas' associated with each use-case would also be ...
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1answer
248 views

Tunneling a particular site through a VPN on a particular NIC

I have two NICs on my desktop — an Ethernet interface and a WiFi interface. I have a VPN connection that allows me to connect to American servers which i use to access sites like Pandora. I can ...
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0answers
259 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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5answers
74k views

Windows 8 Hyper-V - how to give VM internet access?

I've got Windows 8 Pro on my home machine. I want to have a Windows 7 Professional VM running under Hyper-V, and I want the VM to have full internet access. My physical machine has a wireless network ...
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2answers
1k views

VMWare Player 5.0 Upgrade - Bridged Networking No Longer Works

I've been using VMWare Player 4 on my Windows 7 PC, running my VMs under a bridged networking configuration without any problem. I settled on bridged networking two reasons... I often use VMs to ...
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0answers
116 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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1answer
527 views

VirtualBox reinstalling & updating has left me with Too Many Network Adapters. How Do i remove them?

I have too many network adapters. I have had to reinstall, repair VirtualBox a few times, and I have three NICs in my laptop. I definitely don't need to have 14 bridged networking drivers though, and ...
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2answers
1k views

How to tell Windows 7 which default network card (NIC) to use?

I have 2 NICs and 2 physical links from 2 different ISPs. I want to set up a Windows XP virtual PC with VirtualBox to use the 2nd link. But I don't want the host (Windows 7) to use it, I actually want ...
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1answer
1k views

Loss of internet connection with dual network cards

On my desktop computer running Windows 7 64-bit, I have two network ports. The port built into my motherboard is connected directly to my cable modem for internet access. The network connection in ...
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1answer
975 views

technicolor router can't access localhost from public ip

My provider gave me a new router (which sucks compared to the one I had; 2wire), it's Technicolor TG582n software version 10.2.0.B. I looked around for remote management in the router administration ...
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1answer
2k views

No interfaces defined in new Linux installs after installing BSD

A few months back, I attempted an install of PCBSD on my laptop (EDIT: Thinkpad T420). Before installation, my partitions consisted of /swap, /, and /home for an Arch Linux install, and one ...
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2answers
173 views

Ethernet works fine when booting from a live CD, but won't connect from Windows Vista Installation

Got a strange issue at the moment where a PC I'm trying to fix isn't connecting to the network. I've booted from a "Mini Windows XP" boot CD I have and the ethernet connects immediately and works ...
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1answer
775 views

Prefer wired over wireless on same network (special case)

In a related post (multiple nics force routing), I asked about forcing Internet traffic to go via one specific NIC where there were multiples. In that case, the 100Mb wired network had no Internet ...