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 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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