If you want a good internet connection with stability this is probably not a router for you. I used thus router for couple of years and realised that its firmware could not be upgraded and it has a lot of connectivity issues. I used to call my isp all the time thinking it was their problem but it was the router.
Its 2017 already and I don’t think you should even look at this router. Go for something better or a better version from d-link.