For troubleshooting purposes, the computer must be shut down. Using the power button on your machine is probably set to sleep the computer, not to shut it down. To reset your devices in the correct order: Follow the steps below to reset your networking devices, to resolve most network problems, including, but not limited to Wi-Fi and Ethernet disconnects, slowdowns, and errors, even if these issues are affecting only one computer on your network.
Resetting your network devices and network stack, as well as updating drivers for your network deices, are the first troubleshooting steps when you encounter a networking issue.
