Use Apple Software Update to fix Wi-Fi issues in Boot Camp
If you have issues connecting to Wi-Fi while using Windows 10 with Boot Camp on your 2016 MacBook Pro, use Apple Software Update to get the latest drivers.
If you're unable to connect to Wi-Fi, open the Apple Software Update application in Windows and install all available updates.
If you can't connect to the Internet via a wired connection in Windows, start up in macOS and follow these steps:
Connect an external device – such as a USB flash drive formatted for Windows – to your Mac.
Open Boot Camp Assistant. It's in the Utilities folder, inside the Applications folder.
Choose Action > Download Windows Support Software.
Select the external device as the destination for the software.
Boot your Mac into Windows and install the update from the external device.
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