Internet icon in the lower right corner of Windows 7 is abnormal

Symptom:
The network icon in the lower right corner of the computer is abnormal. It is wired or wireless connected but the icon is displayed as a red fork (Figure 1), there is a wireless hotspot icon (Figure 2), the Internet connection is normal, the icon is Red exclamation mark!


Solution:
Method 1:
Open the device device manager, right click "My computer" - "&" and "Admin" <; Device Manager -&&quoquo;View”--&“Show Hidden Devices>--Click on "Network Adapter", all will be "6TO4 Adapter" and “isatap.{…}” The device at the beginning is deleted (right click on the device, select Uninstall), as shown in Figure 3 Network Adapter:

(Figure 3)
Close “Device Manager”. Click ”Start”--&&quoquo;Control Panel --&&quoquo;Network and Internet>--&"Open Network and Sharing Center;
In the "Network and Sharing Center" interface, click “ Manage Network Connections 
In the "Network Connections" window, right click on “Local Connection", select “Properties>;
In the “Local Connection Properties” window, cancel Select <;Internet Protocol Version 6 (TCP/IPv6)& rdquo;, then click the “OK” button. (Fig. 4)

(Fig. 4)
Restart the computer network icon to resume normal display. (Figure 5)

(Figure 5)
Method 2: Start, click the right button to run the administrator, enter the following commands in turn, and then restart.
net localgroup administrators localservice /add
net localgroup administrators networkservice /add