Okay thank you for confirming, John.
That, unfortunately, points to an internal hardware fault, meaning the wifi transceiver (adapter) in the stick is defective.
A few things to check first, before confirming that:
Do the full factory reset from the setup menu, several times.
Make sure you're powering it from the wall plug and not just from tv usb.
If still no change, then the stick itself is defective, and in that event, your best recourse will be to contact Amazon warranty service directly, at 866\321\8851. Even if past the warranty, Amazon usually has very good customer service, and will often offer a credit/trade in toward a new or model.
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