Internet is connected but not working
The title of the post is strange, but it looks exactly like this:
- The computer is connected to the router, but the Internet does not work on the computer;
- When the cable is connected to the network card, the connection indicators on the board do not light up;
- The Internet is guaranteed to work. If you connect another computer or laptop to the same cable, you can access the Internet without any problems.
Such symptoms indicate that the integrated network card in the computer has failed.
Let's look at the problem and its solution in specific example. Connecting network cable to the computer, but the Internet does not work, the computer does not signal in any way that the cable is connected. Let's see if the computer “sees” the network card (network card, network adapter, “network card”). To do this, you need to look at the list of devices in Device Manager.
Step 1. Go to the main menu by clicking on the Start button > then right-clicking on Computer > in the context menu select Properties.
Step 2. In the window Properties of the system go to the Hardware tab and click on the button device Manager.
Launch the device manager
Device Manager has launched. As expected, the network card is not listed.
To make sure once again that the problem is in the hardware, and not in software, the operating system was loaded on the computer from a CD-ROM. After booting Ubuntu, the network cards were also not detected.
Conclusion: The integrated network card has failed. The elements of the integrated network card are located on the motherboard, i.e. the integrated network card cannot be replaced without changing the motherboard. However, we can install a discrete (external) network card.
Installing a discrete network card
After you open the system unit, it is advisable to clean it of dust (). After this, you can safely begin installing the network card.
I didn’t have to choose a network card; the owner of the computer bought it himself. The choice fell on the D-Link DFE-520TX. Network card contents:
- Network card;
- Driver disk;
- Instructions.
The network card can be installed in any free PCI slot. Budget motherboards may only have one PCI slot. In this particular case, there are three slots and the network card will be installed in the top PCI slot.
The network card will be installed in the top PCI slot
Step 1.
Step 2.
Step 3. We fix the bracket with a screw. If you don't have spare screws, you can borrow one screw from the case cover or from the power supply.
Close the system unit case, connect all the necessary cables and turn on the computer's power.
Installing network card drivers
If the computer is running operating system Windows 7, then the drivers will be installed automatically. In this particular case, the Windows XP operating system was installed on the computer, so installing drivers was required.
This post originally appeared . Let me explain that an Ethernet controller is a network card.
Network card detected
The Found New Hardware Wizard starts automatically. By default, the installation option is offered « Automatic installation(recommended)"— we leave this option.
Leave the option “Automatic installation (recommended)”
Insert the driver disk into the CD drive. After this, the driver installation will begin. If it does not start automatically, click on the Next button.
The Found New Hardware Wizard easily detected the installed network card. At this step, simply click the Next button.
We don't change anything. Just click the “Next” button
During the process of installing network card drivers, you do not need to do anything.
After installing the drivers, all that remains is to click on the Finish button.
The master has completed his work. All you have to do is click on the “Done” button
If the driver installation process proceeds without failure, a message should appear .
Network card drivers installed successfully
If we now look at Device Manager, we will see that the network card has appeared in the list.
Discrete network card appears in the list of devices
The Internet works, i.e. mission accomplished. If you look at the network card, you will see that the green indicator is blinking, which indicates that data is being transferred.
That's all. If you have questions, comments, suggestions, leave them in the comments.
Evgeny Mukhutdinov
The laptop is convenient because it has a built-in wifi module and you can do without pulling cables. But sometimes something unpleasant happens - the Internet on the laptop does not work. Let's figure out why and what to do in this situation.
Why does the Internet not work on a laptop?
There may be several reasons:
The first is that you forgot to pay for the Internet, and the provider has limited access. You need to go to Personal Area(data from him must be specified in your agreement with the provider) and check the status of your account. There is a connection, but the data is transferred very slowly? Maybe your Internet speed was cut off for non-payment. Some companies do this. For example, Beeline or Rostelecom.
The second is interruptions on the part of the provider. If the account is in order and there is money, try to find out if there is a connection in principle. To do this, connect the network cable directly to the laptop and check if the Internet connection works. No? Check settings:
In the case when you do not have a cable connection at all (you recently changed the OS), then you need to create one. To do this you need:
Did not help? Connect the cable to another laptop or PC. If the network appears, your network card may have burned out.
If the Internet does not work on another laptop via cable, call the technical support of your provider and find out the reason.
The third is poor coverage. When using Internet wifi with a 3G or 4G modem, or distributing it from a phone, there may be no network coverage at the point where you are and wifi does not work. For example, on the highway or outside the city. Check your mobile phone to see if there is a connection. Wireless Internet It will not work on a laptop if the tower is located far away.
Fourth, you and your laptop have gone beyond the coverage of your wifi router. For example, you are outside the city in the country. The router is installed in the house, and you are trying to get wifi in the attic, under the roof. Be prepared that the roof will screen the connection or the distance is simply too long (in the case of a weak wifi router). Try moving closer to the router. The connection may begin to work.
Fifth, there are problems with the wifi router and for this reason the Internet on the laptop does not work via wifi. Try rebooting it. To do this, simply unplug its power supply, wait 30 seconds and plug it in again.
Sixth - the drivers have fallen off. Check if everything is ok with the software. To do this, go to Device Manager and check if there is a yellow exclamation mark on any network adapter. In the screenshot there is a red circle around where the yellow icon may appear.
If there is one, right-click and select the desired command. 
Update your drivers.
Seventh – the network adapter is disabled. Hover your mouse pointer over it, right-click. If you see the “Enable” command, it means it was disabled for some reason. 
Check all adapters.
Eighth - flew off wifi settings router. Enter the address http://192.168.1.1 in your browser (it may be different - look on the router itself) and enter your login and password (most often admin/admin). In the window, check all connection settings:
- Connection type (taken from the contract or from technical support)
- Network name
- Encryption type (WPA2/PSK)
- Virtual server mode activity virtual server mode - DCHP
Basically, one of these steps should help you gain access to the network or diagnose the problem.
Once again, we list the main steps if the Internet on a laptop does not work well via a wifi router or it has stopped working altogether:
- Check your account - this is often the reason why the Internet on a laptop works slowly via wifi.
- Reboot your wifi router - it might freeze.
- Check your wifi router settings.
- Check the integrity of the cable and plug it into the laptop and check the connection. If it has not been created before, create it. If a connection appears, the problem is in the router or wifi drivers on the laptop. Update them.
- Try connecting the cable to another laptop or PC. If the connection works, your network card is disabled or burned out. If not, there is a problem on the provider’s side.
Have a great day!
Quite often, when connecting to the Internet, you can see the message “unidentified network without Internet access.”
Obviously, it indicates that connecting to the World Wide Web is currently impossible.
Moreover, such a message can be seen both when connecting directly, via cable, and when connecting via wifi. Its appearance does not depend on whether a laptop or a full-fledged PC is used.
Moreover, it can also occur when connecting via a phone or tablet. Therefore, it would be useful to understand why this error occurs and what can be done about it.
We will divide all the many tips into two categories - when the system writes such a message when connecting directly and when connecting via wifi.
Solution. When connected directly
In this case, the error will look like this.
In general, if you use a direct connection, then the most common cause of this problem is problems on the ISP side.
It's very easy to check - if you didn't change any settings and everything worked fine some time ago, then this is the reason.
You can also check this by connecting the cable to another device or through a router - if the problem persists, this is not the cause.
But if this is the case, there is only one way to solve it and it is to call your provider and have a specialist come to your home.
Incorrect IPv4 settings
Another very common cause of this problem is Windows systems is a failure of the IPv4 protocol parameters. To fix this problem, you need to do the following:
- Go to the “Network and Sharing Center”. This is done very simply - you need to right-click on the network connection icon in the quick launch panel. After that, select the desired item.
It all looks as shown in the figure.
- Select the item “Change adapter settings” on the left side of the window that opens.
- Right-click on your connection and select “Properties”.
Note: It is quite possible that in your case the network will be called differently. You need to look at what it is called when you try to connect, that is, in the window shown in the figure. The same connection must be selected in the menu shown in the figure.
- The window shown in Figure A opens. There you need to select “Internet Protocol Version 4 (TCP/IPv4)” (it is highlighted in red) and click the “Properties” button (highlighted in green). After this, a window similar to that shown in Figure B will open.
You need to make sure that the automatic data acquisition items (they are highlighted in yellow frames) are checked. In most cases this should be the case. But at this stage it would be useful to take your contract with the provider in hand.
It is quite possible that the provider requires that there be some special data there. In this case, you need to check the boxes highlighted in blue and enter the data from the contract in the fields with the same color. After all the manipulations, click the “OK” button.
If nothing connects now, you can try restarting the computer. Does not help? Go ahead!
Problems with TCP/IP
Also, the cause of the error described above may be failures in the TCP/IP protocol settings.
Most effective method To rule out this option is to simply reset all these settings.
This is done as follows:
- Launch the command line as administrator. The easiest way to do this is using the following sequence of actions:
- Open the “Start” menu (highlighted in red in the figure);
- Click “All Programs”, find the “Standard” folder there (shown with an orange frame);
- On the “Command Line” item (highlighted green) right-click;
- Select “Run as administrator” (highlighted in blue).
- We write the following there: “netsh int ip reset resetlog.txt” as shown in the figure. Press Enter and restart the computer.
Clue: the above inscription can be copied directly from here using a key combinationCTRL+C, and in the command line you need to right-click on free space and click "Insert".
If this method fails for some reason, you can download a special utility to reset TCP/IP settings at support.microsoft.com/kb/299357.
After downloading it, you just need to launch it, the program will do everything itself.
Problems with DHCP
To check this option, you should launch the command line in the same way as described above and write “ipconfig” there.
If “169.254.[any number].[any number]” is written next to the “Main gateway” (it’s underlined in the figure),” most likely the problem is with DHCP.
To fix this problem, do the following:
- We go to the device manager. To do this, in the “Start” menu, launch “Control Panel” (shown in blue in the figure). After that, in the search bar (highlighted in red) we write “Device Manager”.
We launch the one next to which it says “Update device drivers” (highlighted in green).
- In the manager we find the item “Network adapters” (it is underlined in the figure), on ours (there may be additional ones - virtual ones, but virtual ones usually say “Virtual”), right-click and select the item “Properties” (highlighted in red).
In the menu that opens, go to the “Advanced” tab, find the “Network Address” item in the list and in the “Value” field (highlighted in blue) write any 16-bit number with 12 characters. You can write one as shown in the figure. Click "OK".
- Open the command line as described above and write “ipconfig /release”, press Enter, then “ipconfig /renew” and Enter again.
- Reboot the computer.
If all this does not help, there is only one thing left to do - call the operator and ask for help.
Important: For all the methods described above, the interface was usedWindows7, in other versions of the operating system the appearance of the windows may be slightly different, but the essence remains the same.
Again I want to try to answer Daniel.
Daniel, I have installed the “N Series Multifunctional Wireless Router” TP-LINK TL-WR842N.
I purchased and installed it when I was tired of “fiddling” with wires that were constantly getting in the way under my feet and not only for that reason.
Long before buying a router, I bought three “Wireless USB Network Adapters” TL-WN823N for my three desktop computers
and distributed WI-FI Internet from my “main” (most powerful) computer, to which the cable was connected high speed internet. All traffic went through my computer, which entailed inconvenience - when I turned off my computer, I cut off Internet access to other family members and the load on my processor was noticeable.
By purchasing a router, I received a device that provides all my devices (personal devices, laptop, tablet and two smartphones) with equal and balanced speed access to the Internet.
Following the instructions in the "Guide to quick setup» router, I created my own wireless network, with your password (not to be confused with the password for accessing a high-speed wired connection).
It is important here that the router connects to the Internet automatically, which is indicated by green lights. If the large light bulb (LED) glows green, it means the router has connected to the Internet and is ready to distribute the Internet; if it lights up yellow, then something is wrong with the connection to Internet provider via cable (possibly not configured correctly).
Connecting to the Wi-Fi network we created is the same for both a laptop and a phone - look at the list of available wireless connections, select the network with the name that we entered when setting up the router, and click “connect.” When you connect for the first time, the system will require you to enter a password - enter the password, again, the password that we “hammered” into the router during setup (but this is not the password for the high-speed connection, you can forget that password, the router will always remember it).
Now about what all the fuss is about. As I understand, you decided to connect your computer to the router using a wire, and other devices using Wi-Fi. I didn’t try it, but immediately hung the router in the far corner and haven’t touched it since. I don’t remember why I didn’t try the way you are trying to connect, or maybe I even tried, but I can assume that it won’t work just like that, “from a running start.” Recently I read articles on the Internet, looking for an answer to the question of how to expand the Wi-Fi coverage area. So - it's not that simple. It is necessary to organize several networks and hierarchical dependence of devices ( required number routers).
From the description of the TP-LINK router it does not at all follow that those four yellow connectors are an analogue of a HUB, designed to connect several computers to the Internet as if they were part of a Wi-Fi network, and they are not repeaters or branchers of the wired Internet. It's still called a wireless router.....
I managed to find a description of the router on the Internet in Russian and with pictures:
img.mvideo.ru/ins/50041572.pdf
Perhaps you will be able to learn something and I would be grateful if you later share the solution you found (if you find it).
But I wouldn’t suffer for a long time and would buy a USB Wi-Fi adapter….