I’m looking to upgrade my existing Wi-Fi setup to something that performs better, and has better coverage in the house. The current setup consists of the ISP provided router/AP combo, and a second Wi-Fi network (not mesh) that covers the office and bedrooms upstairs.

The reason for the separate network upstairs is that the AP downstairs doesn’t reach that far. The combo box is currently located inside a small closet (where all ISP/power the connections terminate), and the bedroom is all the way on the other side of the house and a floor op. Moreover, the house uses a lot of concrete, which doesn’t help the situation.

I’d just like to solve the problem properly, I’m not a complete novice when it comes to networking, but I do lack the knowledge to make the… correct decisions here.

One of the things that I’m struggling to determine is if it is worth to “invest” in new Wi-Fi 6 access points. Or whether I should instead go for new (or second hand) Wi-Fi 5 access points. And whether going for “long range” models would help indoors by blasting through the concrete.

Any recommendations are welcome.