After much hair-pulling and numerous replacements by Rogers of their absolutely TERRIBLE Hitron combo router/modems, we finally bit the bullet in July and bought an Asus RT-AC5300, and turned off the router functions in the Hitron. Haven't had a problem since and it's a great router. Not cheap, but we'd had quite enough fiddling and a good friend had one in a much larger house than ours and was very happy with it, so between that and the reviews, we were pretty confident it would be a vast improvement. We still have an Apple Extreme base station which is connected (wired) to the network and runs the Apple TV - it was easier to just leave it in place than take it out of the mix.
