Why does wifi quit on mac mini when using usb 3.0 device?

I've got a brand new Mac Mini with Yosemite 10.10.3 and I've added an external USB 3.0 SSD. When booting from the SSD I lose wifi connectivity. If i turn off the SSD and boot from the internal disk wifi is fine. Has anyone else had a similar problem?

That is a known problem with USB 3
http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb3-frequency-in terference-paper.html
http://www.macobserver.com/tmo/article/usb-3.0-hard-drives-can-cause-wi-fi-inter ference
Get a router that can uses the 5 GHz wifi bands

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