That's hilarious. No, no changes that I'm aware of. No new boxes, devices, router, microwave, phone, nothing. I do not live in a marine area.

I'm unsure of what you're referring to as the RF light. There is a little "radio wave" icon that pops up on the remote while it is sending any RF macro. And no, it doesn't stay on all the time. Just sends the string of commands and then stops transmitting as it should.