I think you have a point, however, those issues all exist regardless of the router/modem. If that is all you changed and the speeds dramatically changed, then i

I think you have a point, however, those issues all exist regardless of the router/modem. If that is all you changed and the speeds dramatically changed, then it bears further investigation. I don't think the post is saying this is definitive. Merely that it bears further investigation. Where there is smoke there is fire.