Razer Blackwidow Tournament Edition repeating keys...

Folks, I have an interesting problem that keeps cropping up on my Razer Blackwidow Chroma TE (v2). Several keys seem to repeat abnormally, most typically the B, N and M keys. It does NOT happen when I use the keyboard on my Razer Blade Pro 17, but when the Blackwidow TE is plugged into my laptop directly, I regularly get repeated keys. The B key is the one where it happens most often, followed by N or M. It does occasionally happen to other keys as well, but B is pretty much a regular issue. It doesn't matter if it's plugged directly into the USB port on the laptop, or into the USB hub in the Razer Chroma laptop stand. Any suggestions? Patrick