I bought a Mag Box 250 around a month ago. It was working perfectly for a week or so, then my internet service started to play up. I was getting 50+mbs, then it dropped to between 10-15mbs. The Mag box speed test was showing up as 2-3mbs and hasn't improved but my speeds are back to 50+. Is it possible that my ISP is throttling the MAG Box?