The author's Windows 7 system has an overnight download, the next day I found out that I don't know why I can't get on the network. Later I figured out that the network card is automatically disabled. Below is the author's Set the method to prevent the NIC from being automatically disabled again.
1. Right-click on the computer icon and select Properties from the context menu that pops up.
2. On the "Control Panel Homepage", click "Device Manager" with the left mouse button.
3, in the pop-up device manager dialog box, find "network adapter", right-click the driver, click "properties" in the menu, if the network adapter can not be found in the device manager, Try it again. Alternatively, you can open the properties dialog by double-clicking on the driver in the network adapter.
4. In the properties dialog that opens, find the "Power Management" item, remove the hook in front of "Allow the computer to turn off this device to save power", and then click OK.
NIC is automatically disabled because Windows 7 has automatic power saving function. After the above settings, the NIC will not be automatically disabled.
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