The network card does not see the cable: ways to solve the problem. The network card does not see the cable: instructions for solving the problem What to do if the Internet cable does not work

A wired internet connection is preferred due to the higher data transfer speed and overall signal quality. However, the presence of a large number of physical components located on a fairly large scale creates risks of damage to cable connections. In this regard, USB modem seems to be a more reliable source, albeit a slower solution for providing home Internet.

So, just yesterday you enjoyed high definition video, and today the NIC can't see the cable? Who is to blame and, most importantly, what to do? The following list can be made as the alleged reasons.

Damage to the network cable.
The cable disconnected spontaneously.
Malfunction of the network card.
Incorrect computer settings.
Network card drivers are missing or damaged.

Cable connection problems

The weakest link is the cable itself and the connectors. Usually, part of the cable is inside the apartment, the rest is in the entrance, on the staircase.

In recent years, ISP service installers have shown obvious negligence in the performance of their duties. Cables are laid without additional protection with casings and in easily accessible places. Any bully with a penchant for vandalism passing by has an irresistible desire to pull the rope hanging from above and at once deprive the entire floor of access to the Internet.

Therefore, first of all, be sure to control the entire process of installing the cable Internet, ask the provider's employees to perform all operations in accordance with GOST and in a protective version.

The next subtle point is in-house cabling. If the apartment is inhabited by children and pets, a situation of increased danger is created. It is advisable to place the wires in inaccessible places. Cats and dogs just love to gnaw, bite and tear all kinds of strings. At the same time, electric fields are for some reason very attractive to pets.

Carefully trace the mains cable in all visible areas of the route. If damage is found, it is best to immediately replace the entire unusable piece.
Check if the plug has fallen out of the socket. Remove the connector and insert again. A closed lock should sound.
Inspect the connector pins carefully. If broken or bent contacts are visible, the connector must be replaced.

You can finally check the performance of the network cable by connecting another computer. If the Internet has appeared, it means that everything is in order with the cables and you need to look for faults in your computer.

Computer problems

It is assumed that the problem is with the system unit or the operating system of the computer. Do not rush to immediately open the system unit. The most common reason is broken Windows settings.

Go to Control Panel \ All Control Panel Items \ Network and Sharing Center and change the settings

If the Internet used to work normally, we can assume that rolling back the operating system to one of the previous states can solve the problem. Often, the Internet stops working after excessively active surfing the network, especially with visiting suspicious sites and without antivirus installed.

If the rollback does not help, open the Internet connection interface and diagnose the network connection. Check if the network connection settings are correct. Sometimes the reason that the network card does not see the cable is the incorrectly set maximum Internet speed. Check and adjust according to the instructions.

If you need to specify the Internet settings in specific numbers, you need to contact your Internet provider and get all the necessary information for a specific network connection.

Driver problem

Network card drivers are another weak point, often leading to disruptions in Internet reception. Where can I get these programs and how to install them correctly? A complete set of required drivers is located on the Windows operating system distribution disc.

Sometimes it is advisable not to bother with the search for specific programs, but to reinstall the entire Windows operating system at once. In this case, all settings and settings of the computer will return to the factory settings, and all the necessary drivers will be installed again.

The main obstacle to using this method is the almost inevitable loss of all user settings on the computer and the need to spend time reinstalling all working applications. Usually, Windows reinstallation is resorted to in the case when the system itself does not start working very well, slows down, glitches, and often crashes.

You can try a less drastic solution - run an automatic system update. However, if you do not have the latest version of Windows, the technical support may already be repainted and no update exists. The situation is approximately the same with the left versions of Windows. An attempt to update them will inevitably lead to the destruction of the installed system.

You can download the required drivers from the Internet. This path is suitable if you have other computers with working Internet at home. Go to the official website of the network card manufacturer, find your model and find out which diver you need. Download them and save them to a USB stick or DVD. After that, you can go to the Computer Control Panel and install the drivers using the Wizard.

Conclusion. If, nevertheless, it was not possible to coordinate the network cable with the card, and the Internet still did not turn on, all that remains is to seek help from specialists.

Your Windows displays a message Network cable not connected, although in fact the cable is connected to the computer's network card! What to do?!
By itself, a message "Network cable not connected" on the indicator icon LAN connections appears in the system tray when the computer's network card “does not see” from the connection to the home router or provider's equipment - depending on how you have connected Internet.

There are usually three reasons:
1. damaged cable or poor contact in the connector.
2. failure of your equipment.
3. Problems with the provider's equipment.
The best way to start the test is to unplug the cable from the connector on the network card and then plug it back in.

If your network uses ADSL modem, WiFi router or optical terminal ONT, and the computer is connected through it - disconnect the cable from the port of the router and turn it back on.

Look at the front of the router to see if the indicator of the connector where the computer is turned on is hot.
Did not help? We check the entire cable before entering the apartment for damage. If possible, check the cable wherever possible. Ideally, up to the cable access box. If there is no damage, call the provider's technical support.
If it turns out that the equipment is in good order and the problem is not in it, you just have to try reinstall the network card ... To do this, press the key combination Win + R, in the opened window Execute writing a command devmgmt.msc and press the button OK... Will open device Manager :

Find the section Network cards... In it we find the network card controller - the most common ones are Realtek, Nvidia, Atheros, Intel or Via... Right-click on it and select the item Delete... We reboot the computer.
After rebooting, the system will re-detect and install the network card drivers.

If all else fails ...

All that remains is to try another network card.

Perhaps your network card has taken a long time to live. In this case, if you have a network card integrated into the computer's motherboard, try putting another one in the PCI slot.

I myself often encounter this problem at work. There are many computers there, so I've seen all the solutions to this problem in my lifetime. In general, you want to go online, but the system writes an error - that "The network cable is not connected" (with a red cross). Although it is connected, and you are 100% sure of it.

Going online is clearly impossible. Therefore, we will solve the problem ourselves. There is nothing wrong with that, and usually it can all be resolved on the spot. I will tell you about all methods from the most popular to the rarest. So you just have to read carefully and follow the instructions.

Causes

So what does this mean? On the operating system Windows 7, 8, 10 and even XP, the reasons are the same. The network card cannot receive the network signal. In fact, the symptoms of the problem can lie in several places:

Faulty wire;
Malfunction of the plug;
Breakdown of the port;
Breakdown of the network card;
Windows OS problem;
Viruses and third-party programs have broken the normal function of the drivers
An emergency at the provider.

First steps

Check if the cable is connected. Strange as it may seem, but it can simply fall out of the nest. This happens if his ear breaks off. Then nothing holds him, and he falls out calm at the slightest breath of wind. I would also advise you to pull out and insert the wire back for clarity.

If your connection does not go directly, but through a router, also pull out the wire from the port on the router and insert it into the same port. Do not confuse, you need to pull out exactly the cable that comes from the computer or laptop. You can insert it into the socket harder, but without fanaticism.

If this does not help, then insert the wire into the router, but into a different LAN socket. Sometimes ports burn out and stop working. This is especially the case on budget models when a large number of devices are connected via LAN ports.

Just in case, I would also restart the computer and the router itself. Comp I think you already know how to overload. The router just has its own power button, press it, and then turn on the device after a minute. If you are afraid to press something wrong, just unplug it and insert it back.

If you have a second cable, try connecting it to your router. The cable may have been broken or chewed by pets. There should be a factory wire in the box from under the router - it's short, but it's worth trying it.

On a computer or laptop in a network card, lightly joke the input along with the cable. And watch the connection at the same time. If you see that there is a connection in some position, then this may also indicate a broken integrity of the cable or the plug itself. The contacts in the connector can also be oxidized. In this case, it is best to purchase a new cable.

Driver for a network card

If the Ethernet cable is connected and working, what should I do next? The driver from the "network card" can break due to viruses or third-party programs. But it is enough to fix it without using the Internet. To do this, we need to go to the task manager. To do this, press the "Windows" and "R" buttons at the same time. After that, you will see a window in which you need to enter the command as in the picture below. Then we press "OK".

Now find the "Network adapters" section with the two crossed computers icon. Open the list and find your network card. Most often the name is the same - "Realtek PCIe GBE Family Controller". Next, you need to delete it by right-clicking and then selecting the desired option.

Then restart your machine. As a rule, after a reboot, the system will automatically install a new, non-broken driver and everything should work.

Setting the duplex speed

This is also a fairly common problem. The network card itself cannot determine the speed and duplex of data transmission in the network. And as a result, you see a red cross and our mistake.

And so we go back to the device manager. You can see how to do this in the chapter above.

This time we also find the network device and go to the property.

Go to the "Advanced" tab. Now on the left in the block you need to find the section "Speed and Duplex", on some versions of Windows this name has the English name "Speed & Duplex".
As soon as you select this name, a block will appear on the left where you need to select a value from the list. First, select "Auto-Negotiation". Click "OK" and restart your computer. If automatic speed detection does not work, you will have to select each option separately (1 Gbit, 10, 100 Mbit, etc.) and restart the computer again.

Installing the network driver

Your best bet is to reinstall the driver on your network hardware as it may be broken. If you have a disk with drivers from the motherboard, then install "Firewood" from there. You can also download them. Since we do not have the Internet, we will have to find a good friend who will let us download the drivers from his computer.

It is best to download hardware software from the official site. It is enough to enter the full name of the motherboard in any search engine. If you do not know the name of your "Motherboard", then the driver can be installed from the "DriverPack Offline Network" package from this site - https://drp.su/ru/foradmin.

Virus removal and system rollback

Check the entire system for viruses. Unfortunately, some system files can be damaged. In such cases, system rollback helps a lot.

You will be greeted by the service, click "Next". Click on the checkbox to see all possible restore points. Select the earliest or the date on which this problem did not occur. Click "Next" and then "Finish".
We are waiting for the service to fulfill its mission.

Nothing helped

If your Internet connection goes directly to your computer and laptop, without a router. This is most likely the problem with the provider. In this case, it is worth calling the service provider's hotline and asking them about the problem.
If, nevertheless, the connection comes from a router, then take a wire from the provider that comes from the outside and connect it directly to the computer's network card. At the same time, you do not need to configure the Internet, after connecting you should see a yellow triangle in the lower right corner in the place of the connection. In this case, the problem is most likely in the port of the router. As I wrote earlier, try all LAN ports.
If you have a laptop, then try connecting via WiFi. If it connects, then there is a problem with the network card and software. If not, then there is a malfunction in your Internet center.
When connecting via aDSL modem, it is better to call those. support so they can call you. In such cases, it is impossible to connect to the network card directly.

One of the most common errors that occur when connecting a computer to the Internet is the appearance of an error message that the network cable is not connected and there is no Internet, although in fact it is connected and may have even worked some time ago. Moreover, there may even be Internet access, but the error remains. What to do in this situation and how to restore communication?

Reasons for the error

There can be many reasons - I propose to divide them into two groups.

Off-computer related problems
Or with the PC itself or Windows settings

Network cable not plugged in - what to check first?

Problems in the router

A separate conversation requires consideration of possible errors when setting up a wifi router if the computer is not connected directly to the Internet, but through it. This topic is extensive, we have already touched on it many times on the blog. In particular, the problem is when, or. But within the framework of this article, I can only give a few general tips:

Network cable not connected or unrecognized network on the computer

Before looking into the possible causes and how to fix them related to the system settings, I note that the error message may also look like "Unidentified network" or "No Internet access".

Let's go through the main methods that will correct our situation by 99%, if the matter is still in connection with the equipment installed on the computer in combination with the Windows settings - let's leave out of the brackets a possible banal breakdown of a network card.

Device Manager
I will show on Windows 10 - first, let's try to go to "Start (right-click) - Device Manager"

Open the "Network adapters" branch and find the line "Realtek PCIe GBE Family Controller".

Click on it with the right mouse button and in the new window select "Delete device"

Then we restart the computer - when the operating system boots, it will again be found in the system.

If after that the Internet does not work, then we try in the same way to go to "Properties"

Here we go to the "Advanced" tab - before our eyes we will see a long list of different values, among which it is necessary to find "Speed & Duplex". Here in the right drop-down list should be the value "Auto Negotiation".

If you have, and the Internet is not working, try playing with a choice of other values.
Finally, the last thing that can be the cause of the "Network cable not connected" error is a malfunction of the drivers.
In general, it is recommended to always have the latest drivers for all PC components. Download from the official website of the manufacturer and update the "firewood" for your network card. It's even easier to use a ready-made kit - I talked about this in detail in this article.

Thanks! Did not help

From time to time, some users are faced with a rather unpleasant and extremely confusing situation: the network cable is connected, but the computer indicates that there is no network connection. In this article, we will look at the various reasons for this difficult problem with you, as well as look at ways to fix it.

So let's first try to sort out the possible causes of the problem you're unfortunately faced with. If you went to this page, then you should already be one hundred percent sure that you do not have a network connection itself, and not access to the Internet. It is very important to distinguish between these two concepts: if you have a red cross in the connection status, this is the absence of any connection, and if there is a yellow exclamation mark, there is a connection, but it does not have access to the Internet. Be aware that these are two completely different problems.

Checking the connection

Well, there is a cross in the connection status - this is bad, since the connection is not visible by the system even when the network cable is plugged into the computer. Let's try to figure out what the problem is and how to fix it. First, you need to check if you have properly connected the network cable to the Ethernet port of your motherboard. It is worth noting that sometimes the latch on the end of the network cable (it is usually on it) might not work - and the cable just dangles in the Ethernet port. Make sure your network cable is properly connected. Perhaps there is something wrong with this very latch or something else.

Checking the cable and connection interface

Ok, it looks like the cable is properly connected to the motherboard. Still no results? Let's now check if everything is fine with your network cable from the provider. This happens quite rarely, but sometimes such cables can be damaged. Also pay special attention to the RJ-45 interface connection, which crimps the network cable: the cable cores could move away from it, as a result of which the connection cannot be established. Well, have you examined everything properly? Okay, physical cable problems can now be removed from the list.

Provider-side problem

The next problem that could happen to you is problems on the side of your provider. Perhaps there was some kind of serious breakdown that led to a complete loss of network connection. Sometimes, such situations happen. However, in some cases, the network connection may disappear due to the disconnection of you from the network by the provider itself, for example, due to non-payment for services and other things. In general, we recommend that you call your ISP and ask them if there are any major problems on their side.

Reinstalling the driver for the network adapter

Moving on. You contacted the provider and he pointed out to you that everything is just fine on his side. What else could be the problem? Well, it can be, for example, in the driver for the network card installed on your system. This driver might not start working correctly, which caused the problem with the use of the computer's network adapter.

To fix the problem, you need to try reinstalling the driver for the network adapter and then try again to reconnect the cable to your computer. Your network connection is currently unavailable, then you will have to use Internet access from somewhere else, nevertheless, considering that you are reading these lines, you have already found it. So, you need to search the Internet for the redistributable package with the driver for your network adapter and reinstall it. You can find this driver in the public domain, on the website of the manufacturer of your laptop, motherboard, or the network adapter itself.

After downloading the driver to your computer, do not rush to install it right away: first, you need to get rid of the one already installed on your system. Right-click on Start and select Device Manager (or you can click Windows + R, enter devmgmt.msc and press Enter). After opening the Device Manager window in front of you, find the section called "Network adapters" in the list and expand it.

In the list of network devices, you will need to find your network adapter. As a rule, you can easily identify it by its name, for example, network cards from Realtek are quite often used in motherboards. Having found the name of your network card, double-click on it with the left mouse button to open its properties. After opening a small window, go to the "Driver" tab. Find and click on the "Remove device" button. As soon as you remove your network card (driver for it) from the system, run the installation of the previously downloaded driver. When finished installing the driver, restart your computer.

Speed and duplex settings

Well, did reinstalling the driver for your network card help resolve the problem? Was the system able to locate your ISP's network? If not, then the situation has just become extremely complicated. There is one more thing you need to try before putting the final verdict: put automatic settings for speed and duplex in the settings of the network card. It is worth noting that the problem with detecting a network connection often arises due to the fact that the wrong speed and duplex settings are set in the parameters of the network adapter.

First, you need to open the parameters of your network adapter: go to Device Manager again, as shown above, and then double-click on the network adapter. This time you will need a slightly different tab, namely - "Advanced". As soon as you open this tab, you will see a list of available parameters for the network adapter. Next, you need to find and select in this list the line "Speed and Duplex" (Speed & Duplex). Select the Auto negotiation option for this option and save the selected settings, then restart your computer.

Visit to the service center

Try reconnecting the network cable from your ISP to your computer to see if the problem has been resolved. Typically, one of the above should work - the network connection will show itself. However, if you realized that you wasted your time and nothing worked, then we have bad news for you: your network card (adapter) was probably damaged due to some incident. You cannot connect to the provider's network simply because you do not have a device in your computer that could do this. We recommend that you contact a specialist to inspect your motherboard if the adapter is built-in, or the network card, as there is definitely something wrong with it.

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