Why my windows computer can not access the Internet even though it has been connected to the WiFi?

There may be some reasons:

(1) The network adapter’s driver version may be too old to be compatible with some router with new technology.

(2) The network adapter may be set to Sleep Mode by default on windows system, so it can not keep getting a valid IP from the router.

(3) It may be relevant with that the computer is not set to Obtain an IP Address Automatically.

If your situation is one of the above, try the following methods may help.

1. Update the driver or software for your wireless adapter.

Step 1: Check the model for your wireless adapter;

Step 2: Go to the manufacture’s website for the latest driver version;

Step 3: Update the driver. You can contact the manufacture’s support for help in updating.

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2. Configure the wireless adapter in active mode.

Step 1: Open the Control Panel

You can type control panel in the search bar at the lower left of the screen and press Enter to open the control panel.

Step 2: Go to Network Connections

Go to Network and Internet > Network and Sharing Center.

Select Change adapter settings on the left.

Step 3: Turn off the Power-saving Mode for the wireless adapter.

Right Click WiFi Connection and select Properties.

Then click Configure.

Select Power Management, do not to tick “Allow the computer to turn off the device to save power”, and click OK finally.

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3. Set the Windows to obtain an IP address automatically.

Step 1: Right Click WiFi Connection and select Properties.

Note: Please refer to the section of “Configure the wireless adapter in active mode” above to find the options below.

Step 2: Select Internet Protocol Version 4 (TCP / IPv4) and then click Properties.

Step 3: Click the radio button beside Obtain an IP address automatically, and then click OK.

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