It happens that when the device is connected to Wi-Fi, the Internet does not work on Windows xp, 7, 8, 10. Basically, a similar problem occurs during the settings of the Wi-Fi router. However, there are situations when the Internet connection is present, it just suddenly disappears at a certain second. Moreover, the computer itself, phone or tablet has a Wi-Fi connection, but it is impossible to access the Network.
The reasons that Wi-Fi is connected, but the Internet does not work, pages do not open can be very different, as well as solutions. It is necessary to understand in detail all the nuances. Usually, violations occur due to the router itself or a PC, tablet, smartphone, etc.
For easier understanding, this article is divided into several main points:
- What to do if the source of the problem is router.
- Troubleshooting on desktop and laptop computer.
- Solving the problem with the work of the Internet on tablet or smartphone.
When Wi-Fi is connected, but the Internet does not work (limited), first of all, you need to check the router and network access, because rarely used devices (laptops, smartphones, tablets, etc.) become the source of the problem.
WiFi not working due to router
Most likely, there are several mobile or computer devices that are connected to Wi-Fi. You need to connect them to your own network and if the Internet does not work on any device, the problem is due to the router. In addition, you can connect your computer or phone to someone else's Wi-Fi and see if the Network will start in this case. After confirming that the router is the source of the problem, you can try to solve it:
- simple enough reboot router, in some cases, even more than 3 min. If necessary, do this several times;
- it is essential to make sure that provider paid for and there are no problems. To do this, contact the help desk of your Internet provider. It is possible to connect the Internet directly to a computer and see if it will work without using a router;
- check correct wiring connection to the router. You should also carefully study the indicators on the router itself (if they work properly, they should blink);
- if the Internet works fine without a router - view settings. Probably, the settings have been reset and the substation is unable to connect to the provider. Due to the fact that there are several types of routers, the instructions for them will also be specific to a particular manufacturer. Information on the settings can be found on the Web in the public domain;
- if someone else's Wi-Fi is used, the network owner may not have had time to pay for the provider's services.
Laptop or desktop PC connected to Wi-Fi, but no Internet access on Windows xp, 7, 8, 10
If such violations are observed exclusively on a desktop or laptop computer(it works on other devices), first you need to study specific settings.
In this case, the first step is to restart the laptop. After that, you need to make sure that obtaining an IP address in auto mode is set in the characteristics of the wireless connection. You can do this by clicking on network icon right mouse button and select " Control center", then go to " Change adapter settings". Next, right-click on the wireless network adapter, call " Properties", then double-click on "IP version 4" and check if the automatic mode for obtaining the address is set. 
If the problem is not solved by the steps taken, it does not hurt to read the article. Very often, the problem occurs precisely because of an outdated (after the next system update) or incorrectly working driver.
It may also happen that an error will be displayed in the browser DNS error or something similar. In this case, you need to read the tips on solving this issue, which can also be found on the Web.