Anyone experiencing Wi Fi issues after installing the FREE mini box for analog to HD conversion?

I know it's two different things, but we just installed the box a couple days ago on our TV and we started experiencing Wi Fi issues immediately. We experienced an issue while the box was setting up!! And now we've had one or two issues a day for the last 3 days. We have to reset the modem and wi fi router a couple times for it to work. I know the cable comes from the street and it splits; one goes to the TV and one goes to my router, so it's not related. Or is it? Annoying.