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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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 ...
2
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2answers
181 views
Is my Network Interface Card faulty?
I've got a Dell Optiplex GX240 running Windows XP, and am having network issues with it. I downloaded and installed updated drivers from DELL, but the issue is not resolved. Windows Device Manager ...
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3answers
903 views
How can I tell which of multiple network cards is in use?
Suppose I have multiple network cards connected to my PC, how can I know which card is used for communication. For example, if I use
ping 192.168.x.xxx
I would like to know which card (and which ...
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1answer
1k views
Adding a second network card (dedicated connection to a network music streaming device) to a PC already on a home wireless network
I have a pretty normal home wireless network with a combined adsl modem/router which all my (Windows XP/Vista) computers use DHCP to connect wirelessly to and share resources among each other in a ...
2
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3answers
112 views
wireless interface: usb or pci?
I have a router in my basement, and a desktop in the office upstairs, about 20 feet away through walls. With my laptop, which has a 5300 bgn card, i get a consistent 80% + signal with 100+mbps ...
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2answers
352 views
NIC stopped receiving 20% of packets
I connect to my gigabit LAN with my RTL8111C-based NIC. It's on a Gigabyte GA-P43-DS3. In the last 3 weeks I noticed that my transfer rate dropped from the usual 40-60 MB/s (using a NAS over SMB) to ...
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2answers
93 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
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1answer
967 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 ...
2
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1answer
307 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 ...
2
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1answer
1k 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 ...
2
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1answer
238 views
10 Gbps Network Card on PCIe 2.0 X8. Enough PCIe bandwidth?
Would a PCIe 2.0 X8 slot have enough bandwidth for a NIC with two 10 Gbps connections?
From what I understand, each lane on a PCIe 2.0 card is good for 4 Gbps, so 8 lanes = 32 Gbps, right? Is my ...
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2answers
57 views
What is faster for multimedia performance? Leaving a NIC to do checksums or the CPU?
I noticed a NIC from Realtek has an option to "offload" some of the CPU work for checksums onto itself. However, this has some - I would say - humorous effects on opinions of people on the web: Some ...
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1answer
179 views
Onboard NIC picks wrong IRQ on startup
I am dealing with an older PC with Windows XP. Someone recently selected "Load Optimized Defaults" from BIOS and now tiny little problems have emerged.
One of the problems is that the Ethernet NIC ...
2
votes
1answer
2k views
Do laptop docking stations have their own MAC addresses?
My laptop has an ethernet connection, and there's another on the docking station.
Can I connect using both at the same time? Will they have different MAC addresses?
I'm assuming the ethernet port ...
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2answers
4k views
Intel Network Connection: This device cannot start. (Code 10)
I have a Intel® Desktop Board DP55KG (see http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.htm), which has a Intel 82578DC Gigabit Network Connection on board. Additionally, I ...
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4answers
656 views
CPU load, USB connection vs. NIC
In general, and understanding the answer may vary by manufacturer and model (and driver, and...), in consumer-grade workstations with integrated NICs, does the NIC rely on the CPU for a lot of help ...
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5answers
2k views
Linux will not activate wireless after device has been re-enabled
Using a Eee 900A netbook by Asus. By pressing Fn + F2, I can disable or enable the wireless chip on the netbook, a blue LED indicates the status. I've been able to connect to wireless networks just ...
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3answers
4k views
How can I force Windows 7 to use specific network adapters per program?
I am using Hamachi VPN. I want to setup Windows 7 to use the Hamachi VPN network adapter for specific software on my system; other softwares should use the regular network adapters.
Is this possible ...
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3answers
240 views
OS X will not register newly installed network adapters
I have purchased an Edimax 7318USg and tested it on a Windows machine (works). The installation process for the software for this adapter runs smoothly. However, OS X simply does not recognize new ...
2
votes
1answer
165 views
Conflicts between 2 NICs
I have an HP server (Windows Server 2003) with 2 external NICs (couldn't get the builtin NIC to work).
One is for an internal network of 4 PCs and the other is for part of an Internet-facing ...
2
votes
1answer
2k views
Internet Connection not working - USB LAN connection - from particular modem
I am trying to fix Internet connection on a friends Dell inspiron 1720 with XP service pack 3.
It has an integrated network card that stopped working, after powering down/up the modem still didnt ...
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0answers
77 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 ...
2
votes
1answer
163 views
OpenVPN Messed up my routing table
I installed OpenVPN on Windows 7, but it appears that if both of my adapters are online, the OpenVPN adapter takes precedence over my original non-VPN network connection.
Problem:
All my ...
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0answers
2k views
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 ...
2
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1answer
413 views
Ubuntu: How to get wireless lan and 10/100 running simultaneously?
I am running Ubuntu 10.10 on a Dell Inspiron 6400.
I am able to get 10/100 Ethernet card and Wireless Lan working independently.
Ethernet -> eth0
Wireless Lan -> eth1.
If I restart/reboot my eth0 ...
2
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1answer
762 views
2 gateways 1 nic Ubuntu
Please note that this is ONE NIC and TWO Gateways
Now this solution is super easy in Windows:
* Connection Properties -> TCP/IP Properties -> Default Gateways -> Add (separated by metrics)
I notice ...
2
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1answer
2k views
Updated Win XP to 7: network adapter driver problem
I updated Windows XP on my old laptop to Windows 7. After installing I tried to open internet connection but Win 7 says that it cannot find network adapter because of a missing driver. I tried to find ...
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2answers
422 views
Weird connectivity issue wtih USB Wifi stick
I'm setting up two PCs, and I've been having massive troubles getting a USB wireless dongle working. I have two Sony VAIOs (Windows XP, SP2) that I found second-hand, and since they will be in a ...
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4answers
743 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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3answers
2k views
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2answers
383 views
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3answers
708 views
Disable wireless light?
Is there any way (program, registry key, etc.) that I could disable the little light that turns on whenever WiFi is enabled? I would still like to have WiFi enabled, it's just that I want the light to ...
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2answers
1k views
Network card three-pin connector
I've got an Asus NX1101 gigabit network card.
It has a white connector with three pins. What is it for?
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2answers
6k views
Red Hat: how do you create a new network eth?
I have a machine that has eth0 and eth1, and now I want to create an eth2 and assign it some IP address.
What's the command for doing this?
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1answer
36 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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2answers
773 views
Wake-on-lan only works so many times
I have Wake-on-lan configured on my Windows XP machine so that the computer will wake up from Standby. Waking the computer from Standby via network traffic seems to work a certain number of times, ...
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4answers
2k views
Realtek NIC running at 100Mb/s rather than 1000Mb/s
My Realtek NIC in my Windows Home Server (essentially w2k3) box refuses to run at 1000Mb/s even if I change the driver settings from Auto Negotion to 1000Mb/s full duplex. I've installed the latest ...
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4answers
3k views
Wireless USB adapter with OS X support? [closed]
I haven't been able to locate any other wireless USB adapters with OS X support.
It should rather be able to handle 108 Mbit/s or higher.
Any suggestions?
Edit: As I'm not a Mac user, I totally ...
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4answers
1k views
Connect VirtualBox to a different internet connection
At the moment, I have my host machine setup to access the internet using the main ethernet connection via a NIC.
I have a VM which currently has it's network settings set to NAT, this allows the ...
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5answers
9k views
How to fix network connection dead on startup, but okay after disable/enable?
on Startup
When my system starts up, the internet connection is dead. This causes various problems with startup items such as updates and auto-start programs failing.
However, the connection is ...
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1answer
36 views
Do I have to install drivers on each network card interface when using network teaming?
If I have network teaming enabled on a set of network interface cards/network adapters and I am required to install drivers, is it sufficient to install them on one network card or do I have to ...
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1answer
7k views
How can I determine the MAC address for a NIC in CentOS without using ifconfig?
CentOS 5.5
One of my CenTOS systems recently booted with the following error:
"Bringing up interface eth0: Device eth0 has difference MAC address than expected. ignoring."
When I run ifconfig -a ...
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1answer
2k views
Multiple interfaces to one IP address?
At present, I have:
a Netgear router with DHCP off at 192.168.0.1
my computer
eth0 at 192.168.0.2
wlan0 at 192.168.0.2
The wlan0 interface always connects to the router, while the eth0 interface ...
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2answers
473 views
Multiple Wi-Fi cards and Internet connections on Windows 7
I have two Wi-Fi cards and two separate Internet connections.
I connect to the Internet with both of them but one does all of the Internet transactions (and I have not seen any place where I can ...
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2answers
4k views
How to configure LAN controller to run at 1Gbps connectivity?
I have a few computers connected through a Gigabit router which show 1Gbps connections. However, one of the computers only shows 100Mbps connectivity even though it is capable of 1Gbps. I am not ...
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2answers
880 views
Ubuntu network card problem
Several days ago, I installed Ubuntu 9.10 onto my Acer Aspire 3100 laptop, running it alongside Widows Vista as a dual-bootable system. Creation of the Ubuntu boot CD went fine, and the installation ...
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1answer
382 views
Please recommend a good wifi to ethernet device
I need that because I am running a free version of iESX server and there is very little that I can configure in the OS itself. The server is sitting rather far from my router and I want to get rid of ...
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1answer
87 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 ...
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2answers
124 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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3answers
734 views
Can I select the adapter to bridge separate for every network adapter in VMware?
I have a host computer running Windows7 with a wired network and a wireless network. These are two separate networks with two separate dhcp servers.
I created an Ubuntu virtual machine in VMware ...
