The importance of a fast and reliable internet connection should be sufficiently well known in 2018. In addition to a good subscription to an ISP, you need an adequate router to make the connection accessible anywhere in the house. Nowadays at least one of them supports the 802.11ac wave 2 standard and is able to handle both 2,4 GHz and 5 GHz, of course with MU-MIMO. Tri-band functionality, the latest modulation techniques and a lot of beastly antennas can also certainly do no harm.

However, as is often the case, practice is much more chaotic than theory. Anyone who thinks they are there with the purchase of an awesome router is mistaken. Just think of the fact that a router seldom stands at the desired central location in a house. Usually the connection is located in a meter cupboard or on a wall in the periphery of the house, and most often on the ground floor.