Have had this C7(V3) router over 2 years and has worked flawlessly up until 3 months ago. The wifi goes down 1-2 times per day which requires a power cycle to bring back up. I have heard about the Chromecast issues but I have had Chromecasts on this router for more than a year. The only device that was added about the time the disconnects began was a 4k fire stick from amazon. Could this be a similar problem to the Chromecast one? Thanks in advance for any advise.