The firewall is not open. It must be the Windows Firewall service is not started. The ICS service cannot be started by the following methods:
1, find the local connection, click the left--properties--shared--check (√)--to determine that, if the above steps do not open the ICS service, you need to do the following
2. Run--enter "services.msc"--find "Internet connection Services"--Properties-dependencies (query for four dependent services started, not started, manually started)--application Layer The Gateway Service (ALG) manually starts the--windows Firewall manual Start--and then executes the first step, ok!
Or take the following steps to fix the problem:
1. Modify the Registration Form
Start--run--regedit, open Registry Editor, delete the following two keys:
Copy Code code as follows:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock
Hkey_local_machine\system\currentcontrolset\services\winsock2
2, modify the TCP/IP protocol installation files
With Notepad, open the%winroot%\inf\nettcpip.inf file and find:
Copy Code code as follows:
[Ms_tcpip. Primaryinstall]
Characteristics=0xa0
> Change the 0xa0 here to 0x80 save exit, change to 0x80 can remove the corrupted TCP protocol
3. Reinstall the TCP/IP protocol
Open the TCP/IP properties for a local connection--install--Add protocol--Browse from disk, locate the Nettcpip.inf (%winroot%\inf\nettcpip.inf) file you just saved, and then select TCP/IP protocol (not which tcp/to choose) IP version 6)
After this step, return to the Network Connection window, but at this time, the "Uninstall" button is already available. Click the Uninstall button to remove the TCP/IP protocol and restart the machine.
4, after the restart in accordance with the 3rd step, reinstall a TCP/IP protocol, and then restart once, at this time to view services, should return to normal.
Other options:
1, in the cmd window input command "Netsh Winsock reset", restart the machine;
2, to install Anti-spyware software: Because some spyware will automatically shut down the system firewall;
Through the above steps, if the problem is not solved ~, it is best to reload the operating system
