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In this tutorial — step by step on what to do if the Internet is not working on Windows 10, 8 and Windows 7 in different scenarios: Internet disappeared and stopped connecting for no reason at all for the cable provider or through a router, stopped working only in the browser or certain programs running on the old, but does not work on the new computer, and in other situations.
Note: my experience suggests that about 5 percent of cases (and not so little) the reason why the Internet suddenly stopped working with message «Not connected. No connections are available» in the notification area and the «Network cable not connected» in the connection list says that the LAN cable is not really connected: check and reconnect (even if visually it seems that there are no problems) cable from the network card slot of the computer and the LAN connector on the router if the connection is through him.
, it describes in detail methods to correct the problem.
Test network connection on a local network (Ethernet)
If the first option is not suitable to your situation, I recommend the following steps to check the Internet connection:
Stay on point 6, the LAN connection shows that everything is fine (included is the name of the network) but no Internet (this may be accompanied by the message «No Internet access» and a yellow exclamation mark next to the connection icon in the notification area).
). Even if the settings are correct, check the connection status in the web interface of the router (if not actively, then for some reason fails to connect, perhaps the fault of the 3rd paragraph).
For the 4th item from the actions that you can try first:
If these two ways doesn’t work, try more sophisticated methods of solving the problem of the individual steps listed above in the 4th paragraph.
Note: if you just installed a router, connect its cable to the computer and the computer does not have Internet, then most likely you just have not yet configured your router correctly. Once this is done, the Internet should appear.
) or if it’s a «branded» computer, the official website of the PC manufacturer and in the Support section download the driver for your network card. He usually has a title that provides a LAN Ethernet Network. The easiest way to find the right website and page on the website to enter in a search engine query composed of a PC model or motherboard and the words «support», usually the first result is the official page.
Perhaps in this context will be useful:(if the list in task Manager there are unknown devices).
(also true for other systems).
The author recommends to read:
- — what to do and why this is happening?
- (for video games)
Typical sections of the BIOS where to find the desired item:
- Advanced — Hardware
- Integrated Peripherals
- On-board device configuration
If one of these or similar sections of the LAN (may be referred to as an Ethernet NIC) adapter was disabled, try enabling it, save settings and restart the computer.
I hope some of the solutions to the problems with the Internet on your computer via USB cable fit for your case. If not, describe the situation in the comments, I will try to help.