How do I detect a wireless network failure in a win7 system?

Wireless network failure can be said to be a very common fault in the Win7 64-bit flagship ISO, there are times when you have not moved the router, also did not move the so-called port or something, but do not know why, Win7 System wireless network will appear exclamation point, or display unrecognized network, Or there are a variety of wireless network failures. This kind of question really lets many users feel very vexed. So how exactly are we going to detect a wireless network failure in the Win7 system? Below, small set to introduce a more commonly used method, the operation steps are as follows:

1. First, we will move the mouse to the Win7 system screen in the lower right corner of the notification area, and then find the wireless network icon, we click the icon, and then choose to open the network and Sharing Center.

2. In the open Network and Sharing Center window, we click on the wireless network connection in the right window.

3. In the pop-up window, we click on the Diagnostic button, click on the Win7 system will automatically diagnose the wireless network, in general, as long as it is not particularly serious failure, this operation can help us to troubleshoot and automatically repair.