Laptop Win7 System wireless network connection Limited or connectionless workaround

Diagnosing the network using diagnostic tools in the system

The system's own wireless network Diagnostics can locate network problems and give some repair, you can enable the system's built-in diagnostic tools, just select "Diagnostics" in the WLAN status window, and then follow the prompts.

Second, check the network and router signal is unblocked

1, first confirm that the network has not owed fees, wireless router connection is good, wireless network signal launch has no normal;

2, if the confirmation is the problem of the router, you can restart the router or the setting of the router back to the factory settings;

3. If applicable, we recommend that you update the wireless router firmware and the wireless network adapter driver for your computer to the latest version.

Third, check the status of network services

Open the Run dialog box, enter "Services.msc" to start the Service Management window, and then, on the right side of the window, verify the status of network services such as DNS client, DHCP client, and IP helper (by default), and then restart the computer.

Four, reset the network connection

To run the command prompt as an administrator, enter the following command and one by one back to the car;

NETSH INT IP RESET

NETSH WINHTTP RESET PROXY

Ipconfig/flushdns

The network connection can be reset after the execution completes.

Check that the IP address and DNS server address are correct

1, first right mouse click on the wireless network icon to the right of the taskbar, select the "Open Network and Sharing Center" option;

2, in the Open Network and Sharing Center window, click to view the active network status on the right side of the "connection" in the WLAN status window, select "Properties";

3. In "This connection uses the following item", double-click Internet Protocol version 4 (TCP/IPV4).

4, and then verify that the required IP address and DNS server address input is correct, after the change is completed press "OK" exit (default is automatically obtained), for the IP address and DNS server address of the wireless network, to enter the specified IP address and DNS server address.

Six, reset Winsock

1, if mistakenly deleted the registry Winsock key value will also cause network connection hint Limited, so when the network is normal, backup registry just in case.

Position of Winsock key value:

Hkey_local_machinesystemcurrentcontrolsetserviceswinsock

Hkey_local_machinesystemcurrentcontrolsetserviceswinsock2

2, you can also use the command prompt (run as administrator to reset wins, command: netsh winsock reset