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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Range extender is working but PC doesn't have internet

I have a TP-LINK range extender (TL-WA850RE). My smartphone connects to it and it has Internet without problems. The thing is that my PC is having trouble with this. I have a desktop computer that ...
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17 views

Wireless network card in other slot

I got this motherboard. I want to buy a wireless network card, but the graphics card takes two mobo slots, and hides a PCI Ex1.0 slot (the bottom one). Can I put a network card in the top PCI Ex1.0 ...
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How to set up a network in Windows 7 to let others can access an internal Linux server?

I have two machines. Machine 1 (denoted as M1) is Windows 7 and has two network cards. Machine 2 (denoted as M2) is RedHat 6.5. In M1, the first network card is connected into the Internet and the ...
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Why WmiPrvSE.exe is changing my preferred DNS each startup?

Today I discover that WmiPrvSE.exe is changing my DNS settings on my main NIC at each startup. The following is an extract from Security event viewer following my registry Audit : - <Event ...
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25 views

Windows 10 Internet randomly disconnecting

I recently did a Fresh Install of Windows 10 about a week ago now, all was fine up until last night where my internet started randomly disconnecting every 2 minutes and then it eventually spanned out ...
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Kali Linux unable to load htc_9271.fw firmware

I am trying to use my TL-WN722N network adapter with Kali Linux on a Banana PI, however every time I plug it, dmesg gives me this error: [ 11.152949] usb 4-1: ath9k_htc: Firmware htc_9271.fw ...
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28 views

How do I assign network cards to specific users?

OS: Windows 10 Pro I have 2 Network connections available. First is Ethernet, second is a LTE Router via Wlan. Main goal: Route specific program traffic through the wired connection while other ...
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given an on-borad port PCI address, how do I know to which NIC it belongs?

Assume we have a server with 2 on-board NICs (no other NIC was inserted to any of the free expansion slots). Given a PCI address of any of the ports of the on-board NICs above, is there a way to know ...
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56 views

FreeRADIUS 3.0.11 ignoring Access-Request from one NIC interface

I've installed FreeRADIUS 3.0.11 to Ubuntu Server 16.04. The Ubuntu Server runs on a ESXi virtual machine. The virtual machine has two NICs. One is for connecting to an admin network, the other one is ...
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34 views

Windows Command Line - List Network Adapter Components

I'm looking for a way to, in a batch file, get a list of the components (such as NDIS drivers) in use by each network adapter on the system. Here's a screenshot of the info I want in the network ...
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30 views

Ethernet throttling itself? Wireless is fine. Video of issue included

https://youtu.be/baV-P00i7CY I just got internet installed today at my new apartment. I'm connecting using my desktop. When I'm connected directly to the modem I get exactly 14.31 mbps every time. ...
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23 views

How many MAC addresses can a single PC have?

Each NIC (wired, wireless, etc) on a computer has a different MAC address. Given that a computer can have more than one Ethernet card (or whatnot), and ignoring the fact that some devices can modify ...
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35 views

How can I get a Mellanox ConnectX-2 to work on this ASUS desktop motherboard?

People seem to be happy with second-hand Mellanox ConnectX-2s on Linux so I grabbed a pair. Both cards result in an network interface showing up on one computer but neither show up in the other ...
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12 views

Second Ethernet card: ¿the same collision domain?

I would like your help to understand if installing a second NIC means another collision domain, or if it acts like another port in a hub (inside my PC).
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23 views

Use Wii U as a network bridge?

I've recently moved my entertainment system far away from where my modem/router and wired Ethernet. The only device I have in the system with a wifi antenna is my Wii U. I also have a USB-to-Ethernet ...
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2answers
63 views

Can I convert RJ11 to RJ45 without modem to use Ethernet?

I have a Tenda 300Mbps N301 wireless router that connects to the ISP with its WAN through a cable that has an RJ45(Ethernet) plug. I would like to use my this router on its WAN, with RJ11(Telephone ...
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25 views

Dell latitudeE5450 wifi issue

I am facing serious issues related to wifi in my laptop. During working the connection to a network stays but suddenly internet accessibility gets lost. When I try to switch to a different network, ...
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1answer
25 views

Networkcard errors after upgrade from squeeze to jessie

We upgraded one of our central routers, which was horribly outdated, via apt-get dist-upgrade from Debian Squeeze over Wheezy to Jessie. But now we see the following errors in dmesg: [Tue Apr 12 ...
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23 views

Access to Private IP Addresses without exposing them on a network

I have 4 ethernet devices contained in one system. There are several systems connected on the ethernet network; I would like to use the exact same ip addresses internally with in each system. . I can ...
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41 views

Windows doesn't set interface metric properly

When I try to set an interface metric on a specific NIC , it doesn't work. When I check with netstat -rn they are completely different than ones I set. I tried enabling and disabling adapters but it ...
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34 views

How to connect to a wireless Display adapter automatically through scripts or Task Scheduler?

I am trying to project files to a Samsung TV which has a windows display adapter. I want to automate the entire process. So when the TV is switched on, I want the computer to continuously check for ...
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Is it safe to upgrade a 802.11b/g/n adapter to a 802.11ac?

I'm thinking of replacing the old wireless network adapter on my laptop. However, I'm not sure if it's safe to do that because the antennas cannot be replaced. What if the new adapter is not ...
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28 views

qemu: emulated nic is too fast

On archlinux, I started a VM with qemu emulating a rtl8139 network card by giving it the following parameters: -device rtl8139,id=nic0,netdev=tap0 -netdev tap,id=tap0,ifname=tap0 After booting the ...
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28 views

Forcing two instances of a Java Application to use different network interfaces on Windows 10?

As the title says I am looking for some method of having two instances of the same Java application (that lack this type of setting) to access the internet using different adapters. I found a couple ...
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20 views

Why might write speed on NIC be fraction of read speed?

I have 2 servers (Windows 2008 R2) each with an x710-DA2 NIC, cross-connected by a 10Gbps wire. I can read a hard dive of one machine, from the other, at 250 MegaBytes/Sec, but the write speed is ...
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18 views

How to disable TCP Checksum for wireless device in Windows 10?

I want to disable TCP Checksums on my wireless adapter. For ethernet device, I can turn on/off TCP checksum as it can be seen down below; However, for wireless adapter, there is no such an option ...
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16 views

Is the USB NIC radio toggle controlled via the registry in Windows 7?

I have a Panda Wireless PAU05 802.11n USB stick. In my Windows 7 laptop, when I close the lid the laptop hibernates and when I resume the wireless radio is always reset to disabled (see image). ...
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56 views

How to use Dlink 550t PCI network card in windows 10 x64

I have a PCI express network card, pretty old but works 10/100/1000 I need to use it in a computer running windows 10 x64. I already try with the original drivers (i got the installation cd), with ...
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63 views

How can I find the real MAC address if it has been changed?

One of my neighbors managed to get my credentials for ISP login and used my Internet connection without permission. I talked to the ISP about the unauthorized data use and they told me the MAC address ...
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38 views

Netflix, Amazon Video and youtube intermittent streaming errors

my PC has issues streaming from Netflix, Amazon and Youtube (my laptop and FireStick work fine). When streaming the video will play fine (buffers fine etc.) but then will randomly cut out, maybe as ...
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16 views

Bridged NIC Connection Issue

I have a Windows 10 Pro desktop with two NICs which are bridged. This configuration has been working fine until today. The yellow warning triangle appeared in the system tray next to the netwok icon ...
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34 views

Windows Dual NIC multicast routing

My office has a bunch of PC's in our software development lab, and we are trying to move from unicast (UDP) to multicast. It works fine with unicast, but for a few different reasons, we are making the ...
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27 views

potential Wireless Adapter issue with wifi

So I have a computer which is connecting to my router using a wireless USB adapter. I also have a mobile device which i am testing with. I noticed extreme Wifi issues in which i would lag extremely ...
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1answer
21 views

Low transmit rate from distant access point

I have connected to a far away access point and the maximum link quality speed is about 65Mbps but the internet is pretty slow. The signal is 54% (good) but the link quality speed is about 11Mbps. Why ...
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44 views

Newly installed network adapter not working

I previously had a Broadcom wireless and Bluetooth adapter installed in my laptop. This adapter worked fine on Windows 10, but always caused problems on my Linux dual-boot. After a lot of hassle ...
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1answer
26 views

Changing DNS server globally in Windows

It is possible to change DNS server for a particular network adapter in Windows. But is it possible make global settings like Linux so I don't have to change it for every network adapter?
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164 views

Upload hangs on Windows 10 and Atheros AR8152 NIC

I have a strange problem with my laptop running Windows 10. When I try to upload some file (from Telegram messenger, from the browser on Imgur/VK/whatever) it hangs and doesn't pass. Process starts, ...
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111 views

Determining fastest LAN speed

Hey guys I'm doing my homework and I don't understand this question. If anyone can help me solve or point me in the right direction would be much appreciated. The question is: if I have a 1Gbps NIC, ...
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1answer
31 views

Multiple IP Settings to Emulate Multiple Devices

Here is the Setup An Ethernet IPv4/UDP network based control system, with 20 different devices attached. A test facility for testing 2 of these devices. Simulator Software to simulate any of the ...
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2answers
242 views

Do pause frames get passed to the host?

I have recently seen a Debian forum that mentioned pause frames should be discarded by the MAC layer and if not the driver should discard them. Is this true? How does a host actually throttle back ...
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0answers
29 views

LAN connection drop every couple of minute

I have a problem related to my LAN. It drop every couple of minutes, only for my PC, so it's not network issues (wired), but PC issue. Winx64 8.1 Pro. ASUS p9x79 motherboard. (I use integrated ...
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50 views

How does NIC driver handle flow control?

Using ethtool to query my driver for statistics with ethtool -S , I can confirm flow control is being used. I am receiving pause frames. When using wireshark to sniff packets and then utilizing it's ...
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50 views

Windows 10 PC Keeps Losing the Network

I have a system that I did a clean install of Windows 10 Pro 32 bit on. This was previously running Windows 7 Pro 32 bit. Since installing Windows 10 every day when I get to the office it has lost ...
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1answer
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Safe Capture of WAN Packets

I have an aggregating network tap between my WAN connetion and my home router. I have a dedicated machine running Wireshark to capture all WAN traffic via the network tap. This machine is running ...
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107 views

Windows 10 tells me no ethernet connection when I am connected to the internet via ethernet

My laptop: Sony VAIO SVT15117CDS My OS: Windows 10 Home 64-bit (version 1511 build 10586.36) I hooked up an ethernet cable to my laptop, and internet is working on my computer without problems. ...
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Using Two Wireless NIC at the same time on Windows 10 Desktop PC

I have read similar questions in the past (i.e. How do I use my dual band Wi-Fi card to connect to 5GHz and 2.4GHz simultaneously on Windows? and Connect multiple WiFi networks simultaneously), ...
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143 views

Way too many network adapters showing up

I was fiddling in Device Manager when I noticed that I have far too many network adapters showing up in Device Manager. I double checked and confirmed in Networking and Sharing Centre under Network ...
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1answer
31 views

How to block certain IP addresses on UEFI system?

So I have several OS on my PC and I'm frequently changing this. Is there some way I can block certain IP address on my NIC so that I can't access it no-matter what. I'm thinking maybe if there could ...
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76 views

Why does windows 10 not recognise my wifi adapter after Hyper-V uninstall

I have an Edimax AC600 USB wifi adapter (using the driver which comes with Windows 10). I've had Windows 10 for a few months and it's been working fine. The other night, I was trying out some VM ...
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48 views

Network Settings on VirtualBox clone (From KVM VPS)

I've recently copied my Debian KVM VPS to my local computer via the dd command. I've converted it into a .vdi and am now running it in VirtualBox. I'm having difficulty configuring the machine for the ...