Reason: 1, the WiFi password is incorrect;
2, routers are limited;
3, Win7 in the WiFi record and the router does not match;
Method:
One, the WiFi password is incorrect
If the Win7 system computer is not connected to WiFi, check that the WiFi password is correct, and if not, you cannot connect to the WiFi network.
Second, routers are restricted
Routers can restrict the Internet to computers in the local area network. If the router has features such as parental control and wireless MAC address filtering, the Win7 system computer will be unable to connect to the WiFi network. All we have to do is turn these features off.
The WiFi records stored in the Win7 are not in conformity with the router
1, click on the Desktop Network icon, select "Properties", or right click on the bottom right corner of the network icon, select "Network and Sharing Center";
2, in the Network and Sharing Center page, click "Management Wireless Network";
3, in the management of the Wireless network page, right-click the WiFi hotspot name to remove, select "Delete Network", confirm.
4, search the wireless WiFi network, connect and enter the password can be.