Q: Bootcamped Windows 10 no longer working after connecting to wifi.

Bootcamped windows 10 no longer works.  Worked great for two months; now stuck in an endless boot loop.  Tried removing partition and re-installing fresh 4 times now, with a new ISO file.  It installs and works fine until I connect to wifi.  It will sit pretty and work fine for hours, but after 6 mins of connecting to wifi it shuts down and starts the boot loop, making it unusable again.  The 6 mins has been consistent.  I can let the newly installed windows 10 work without wifi seemingly indefinitely, but within 6 mins of connecting to my wifi it breaks.

I am using an iMac late 2013 and El Capitan (most up to date version).