ps3 works with WPA2 (my phone's hotspot is WPA2 only). maybe your school is blocking game consoles. you can ask someone who works in the school about it.I tried connecting to WPA2-Enterprise wi-fi security in my school, but I cannot as it says that it is unsupported. Is there any way to connect to it with 4.87 HEN?
actually newer android hotspots can share internet from a wifi connection instead of the phone's data connection. under hotspot settings it is called something like "share via connected wifi". you connect to the wifi on phone then start the hotspot with option. then both phone and connected devices would be using the wifi that phone is connected to. so a newer android phone can be used instead of a computer.I inadvertently mentioned the method everyone else has mentioned except I didn't think about it. a hotspot may be your best option, one with your phone. it will turn off wifi on the phone during the session, but don't worry. you can turn it off at any time. as I mentioned, wpa2 is the only option that my phone does, and the ps3 can do wpa/wpa2 (think that's actually the option) for it. I know every system I changed has had both as a selectable option except for the wii u, which has wpa aes, wpa tkip, wpa 2 aes,, and wpa 2 tkip (all four are separate options).
edit: btw, that's what I used with my psp, a hotspot with my phone, before I got a new phone and router.
actually newer android hotspots can share internet from a wifi connection instead of the phone's data connection. under hotspot settings it is called something like "share via connected wifi". you connect to the wifi on phone then start the hotspot with option. then both phone and connected devices would be using the wifi that phone is connected to. so a newer android phone can be used instead of a computer.