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  • Get Started with ESP8266 Using AT Commands, NodeMCU, or Arduino (ESP-12E)

    Thanks for checking out our tutorial! Usually unplugging the board and re-plugging it back into the USB port works. It gives the driver a chance to re-establish the connection.Navigate to your Device Manager, and expand the Ports (COM & LPT) category. As you plug/unplug the device from the computer, an entry should appear in there.Also, try a different USB port on your computer as a sanity check. Let us know if neither of these solutions work for you!

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