I live in the dorms of my University, that has a public WiFi for each building.
I have several computers in my apt (+ a RPI, a Chromecast Audio, and a WiFi printer) which I want to connect to my own secure network that would have access to the internet through the public WiFi.
I don't have any ethernet ports in my apt, or anywhere around it - just WiFi access based on routers scattered throughout the building.
I am currently using my Raspberry Pi as a wifi bridge, but it works quite poorly.
I'm looking for some hardware that could do the job. I know that any windows pc can do the job (using connectify, or some new feature in windows 10 that allows it), but I want a dedicated low-energy router to do it, preferably one that could create a 5GHz network.
I looked all around the internet, but aside from Traveler Routers, which hold many functions that I don't need like batteries, power-banks or a small size, and are therefore pretty expensive, I did not find ANYTHING that I could clearly interpret as something that could do what I need it to.
What kind of hardware can I get to get this done? What features should I be looking for?