Tagged Questions

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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104 views

Wifi USB Adapters stop working after a couple of months

My Belkin Dual band USB adapter just stopped working. It doesn't work no matter how much I try troubleshooting it. I get an error: USB device not recognised This is third time in last six months ...
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0answers
284 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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2answers
137 views

My laptop's network card is acting very strange

I have a Dell inspiron 1726 laptop. When I try to connect to the Internet via my wired network it drops packets. (I can access the Internet just fine from another computer, so the problem is with the ...
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1answer
2k views

Two wireless NIC on RaspberryPi

I want to be able to use two wireless network adapters on my RaspberryPi running wheezy (Debian).One card is to be used to connect to the network and I want the other to run in the monitor mode. Two ...
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1answer
304 views

How to troubleshoot network problems after fresh install of Linux?

Almost every time I install Ubuntu on any laptop there are some problems with connecting to the Internet. After the last installation neither Ethernet nor Wi-Fi is working. What would be the steps to ...
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1answer
65 views

Cannot Connect to Windows Server Using a Particular IP

We have a Windows server 2008 running as web server. The Server has two IP's (A and B) added to it. We were able to use both the IP's for remote desktop connections and FTP connections. All of a ...
4
votes
1answer
96 views

Hyper-V Network Adapter

I have a setup a Hyper-V VM on my server. I have the NIC setup in Hyper-V manager. I also have the my VM settings pointing to my NIC. I can't access the Internet. Here is a picture of my Hyper-V ...
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3answers
468 views

What is the real capacity of a network device (ethtool - MiB or MB?)

MiB = MebiByte = 1024*1024 MB = MegaByte = 1000*1000 ethtool returns speed = 1000MB/s ifconfig documentation indicated it returns units of MiB How can I tell from that ...
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1answer
84 views

Find processes using a network device

How do I find which processes are using a given network interface at any given moment? I am using Fedora and Ubuntu.
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1answer
174 views

Windows XP change the order of IP address in a NIC having multiple ip address

I've a NIC with two IP address. Now how can I change the order of the IP address so that I can bring any one to the top and have precedence over the other IP addresses. I know I can change that from ...
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0answers
127 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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1answer
458 views

Binding a program to a specific Network Adapter

I am just using my windows7x64 desktop and I want a utility/program that allows me to chose which adapter a program uses for example, running a game through Adapter1 and Streaming videos through ...
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0answers
138 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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0answers
80 views

Bridge NIC to VM without it being used by Host-machine?

I would like to bridge some network cards so that my virtual machines, running in VMware workstation 9, can connect through them, but not the physical windows computer on which the VM's are running. ...
2
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0answers
88 views

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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0answers
34 views

Why can't I seem to keep a reliable connection when utilizing two adapters?

I'm currently in an interesting situation. All of my computers are connected to a wifi network (which has an internet connection). Connecting to that is easy enough. In my room I also have a local ...
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2answers
69 views

Devices with user re-writable MAC addresses [closed]

I'm looking for routers, cell phones, Internet sticks etc. that have user modifiable MAC addresses. Does anyone know how to spot them?? Also how to write the MAC address.. I've heard Linux is a good ...
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1answer
337 views

Specific ethernet cable not working with router only, but works with NIC

I have a DLink DIR-605L, which is a 10/100 Mbps (non-ADSL) router. I am connected to it on a Desktop with a Realtek Network Adapter onboard MSI P45 Platinum. I also have an Asus X54H-SX137D. Both ...
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0answers
189 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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2answers
527 views

How to automatically change network adapter settings upon new network

I am connecting to many different networks on a regular basis. Some use DHCP and the other requires a static IP to be set in different network classes (10.x.x.x, 192.168.x.x) Is there a way to set ...
1
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0answers
714 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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1answer
313 views

Dummy interface in an LXC guest

I am trying to create a split-horizon PPTP setup as described on my website within an LXC container. However, I need a dummy interface within the container to put the DHCP server on. Here comes the ...
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2answers
174 views

If there are 2 NICs on the same machine, can a TCP client on one NIC connect to a TCP server on the other NIC?

I use TUN/TAP to create a tun NIC tun0 with IP 10.10.10.2, and I have a real NIC eth0 with IP 202.112.34.49 Then I run a TCP client which binds its socket to 202.112.34.49 and a TCP server binding ...
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1answer
119 views

Several hardware components either work or not after booting

I have a desktop computer which I put together myself and in the last weeks I discovered a strange behavior. The same issue refers to three components independently. The onboard network controller, ...
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2answers
98 views

“This device cannot start” error - Intel motherboard, 3-COM NIC

I have an old(ish) computer with an Intel D850EMV2 board. I've installed a 3COM 3C-905C-TX NIC on it. Windows boots fine, but the NIC exhibits a This device cannot start (Code 10) error. My BIOS ...
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1answer
631 views

Linux Mint chooses random MAC address on bootup

Every time I start a machine with Linux Mint 14 installed, the Ethernet NIC chooses a random MAC address to use. Is there a way to disable that behavior?
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0answers
98 views

Windows 7x64 ENT - Network card fails after Windows Update

I am building a new desktop from scratch. I installed win7x64 ent and everything worked fine. I then let the system perform the initial update to windows. There were 152 updates totaling over ...
1
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1answer
439 views

My network adapters can't detect 802.11a radio wifi

I have two adapters, one has the Atheros AR9002WB-1NG and the other is a LAN USB Adapter #4. For some reason or the other they both can't detect 802.11a connections. Can someone explain this to me?
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1answer
1k views

How to set NIC in promiscuous mode on mac book air?

I am trying to run my nic on MacOSx at promiscuous mode and then use tshark / tcpdump Option1: ifconfig en0 promisc but I get this message: ifconfig: promisc: bad value Option 2: I tried sudo ...
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0answers
27 views

How to identify which network interface is my application using [duplicate]

I hoped to capture network traffic -using Wireshark- via a port on which my application is running. However when I fired up Wireshark, it listed 4 network interfaces not just 1 as I expected. So I ...
1
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0answers
543 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 ...
1
vote
1answer
1k views

Extract ip address from specific NIC in win7 batch file

I am building a batch to automatically switch a proxy config and the related ip settings bui i am having trouble extracting the ip address of the network adapter i need. I have one "real" nic, and two ...
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vote
2answers
189 views

ping using mac addresses or link local ipv6 addresses

I have 4 Virtual Machines (Ubuntu 12.04) running on a host that is also running Ubuntu 12.04. The Virtual Machines are named: switch-vm vm-1 vm-2 vm-3 Below are the network settings on switch-vm: ...
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0answers
88 views

No network after Windows crash

Windows 7 crashed on my Toshiba Satellite Pro s500. Following reboot, neither the LAN card nor the wireless cards work anymore. The LAN card appears on the Device Manager, but not on the Network ...
0
votes
1answer
680 views

Restarted PC and my network controller can no longer be found

Pretty much what the subject says; I did a restart of my computer and now my network controller (it's integrated in my Asus motherboard: ASUS M5A97 R2.0) doesn't appear anymore as detected hardware; ...
0
votes
1answer
75 views

Windows 7 - Find some certain Network Adapter Details

So, I know I should not ask about homework, but really my mind is blown by how the searches turn up nothing. I have a certain assignment that asks the following: Using the graphical interface find ...
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0answers
52 views

Host Not reachble on a Network Interface

I have two network interfaces on my linux system. When I select eth0 as default gateway , everything works fine. I can connect to the system from other computers, but when I select eth1 as default ...
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0answers
104 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 ...
2
votes
0answers
530 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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0answers
213 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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vote
1answer
1k views

Jumbo Packet vs Transmit Buffers

I want to increase the transfer speed between two network adapters: 1) Atheros AR8152 PCI-E Fast Network Adapter. 2) Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller. Marvell has a "Jumbo ...
1
vote
1answer
5k views

Generic Ethernet drivers for WINDOWS

Background: I have a custom built box that I like to setup with multi-boot using GRUB2 and having Windows 7 x64, latest Linux Mint x64, and couple other Linux/Unix distros. I've had this setup ...
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2answers
976 views

Are USB Ethernet adapter slower than embedded NIC?

I've just bought an usb-lan adapter. it is usb 2.0 and 10/100Mb it connects in full duplex at 100Mb but it is really slow: it goes 10Mb Compared with embedded NIC same file transfert goes ~100Mb Is ...
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votes
2answers
5k views

Does Windows 7 support 802.3ad (link aggregation) natively?

I'm trying to understand what's needed to make Windows 7 combine two Ethernet ports into one virtual 2 gigabit port. I know I need 802.3ad compatible switch, my NAS also supports 802.3ad, but it's not ...
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1answer
165 views

Localhost pinging when there is no network card

How it is possible to ping localhost when there is no network card.
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votes
0answers
1k views

Scan for hardware changes

In windows 8 PCs, the network will not connect at startup. If we do the "scan for hardware changes" in Device manager, then only network will connect. But the same pc was connecting in windows XP. ...
0
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1answer
56 views

Program for separating connections for different program traffic?

I have seen that for combining 2 different connections into one for gaining speed you have to set up routers and flash their memory or buy new ones, and that's the only way for combining it by ...
5
votes
1answer
10k views

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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votes
2answers
645 views

How is ARP about two VMs running on VMWare?

I know that systems in network connect together with IP and Mac address ,But insofar as i now all of OSs running on virtual machine use a common network card.I want to know how another systems connect ...
2
votes
2answers
720 views

Merge two 1GBps NIC's on a single PC

Is it possible to merge two 1GBps NIC's on a single PC thereby doubling the available LAN bandwidth? Two other PC's would then be able to request data at 1GBps each instead of splitting the 1GBps NIC ...