1. First check whether the computer or notebook has turned off the wireless network or WiFi function. One is the switch setting of the wireless network and WiFi with the system or software, and the other is the hardware switch of the computer or notebook itself.
2. Confirm whether the wireless network needs to enter the password and whether the password is correct. If you do not know the wireless network password or enter the wrong password, you cannot connect to the wireless network;
3. Check whether there is a wireless NIC device in the device manager. If there is no wireless NIC device or a yellow question mark is displayed, the wireless NIC driver is faulty. Solution: Go to the official website or use the built-in driver disk to reinstall the driver, or install the driver wizard to update and reinstall the NIC driver;
4. Right-click \"Network Connections\" in the system tray and choose \"Solve the Problem\" for quick repair.
5. Press Win X, select \"Command Prompt (administrator)\
6. Try to repair the network with the 360 security guard's disconnected first aid kit or the network repair function of the Q Q computer manager;
7. Unplug the modem and router, wait for 10 minutes, and then plug in the power supply. After the modem and router run normally, try to connect to the Internet.
8. The network cable or its connector is in poor contact. Solution: Try twisting or plugging to see if you can connect to the Internet;
9. There may be a problem with the DNS Settings. Solution: Please download and install the Rubik's Cube optimization Master, which has: \"DNS Assistant\" through \"DNS assistant\
10. It is also possible that the network has a fixed ip address. Specific IP and DNS are set in TCP\/IP (v4 or v6), but these IP and DNS (v4 or v6) are inconsistent with the router. The solution: If DHCP is enabled on the router, right-click \"Network Connections\" in the system tray and select \"Open Network and Sharing Center\
11. You can also try to change the mode in the router's wireless Settings to 802.11n (the router needs to support this mode). Do not use mixed mode, method: right click \"This computer\
12. If the above methods are invalid, it is likely that there is a problem with the router's Settings. Try to restore the initial Settings: press the RESET button when the wireless router is turned on, and after 5 seconds, restore the initial Settings and reset the wireless router;
13. There may be a problem with the network provided by your network operator, please contact the network operator;
14. The network adapter (including wired network adapter and wireless network adapter) is damaged, please replace the network adapter; (If you do not understand, please find the network operator or professional to repair or replace)
15. The router itself is faulty or damaged, please try another router.
The reasons why you cannot access the Internet when you are connected to WiFi are:
< br >
1, the WiFi itself is a problem, the WiFi may not be connected properly, resulting in no Internet access.
< br >
2, router problems, the router may overheat or damage.
< br >
3, may be broadband arrears, resulting in no Internet access.
< br >
4, WiFi name contains Chinese, resulting in some computers can not connect to the Internet.
< br >
5, computer system problems, there may be a problem with the system, resulting in connection to the WiFi but can not access the Internet.
1. Use other mobile phones or devices to connect to WiFi to try to get online and eliminate the problem of WiFi itself.
< br >
2, restart the router to try, or restore the router to the factory Settings, and then re-dial the Internet, and reset the WiFi according to the setting wizard, or replace the new router and dial up the Internet.
< br >
3, contact the broadband customer service, confirm whether the broadband account is abnormal, such as arrears, recharge the broadband, and then try dial-up connection.
< br >
4. If the name of WiFi contains Chinese, it is recommended to change it to English or a combination of English and numbers before connecting.
< br >
5, if the above reasons are excluded, so long is likely to be a computer system problem, it is recommended to restore the factory Settings. See if you can solve the problem.
I think the wifi is not connected to the appropriate network.