well i connected to 192.168.0.1 and it's apparently a mikrotik router; they've made 3 routers, all have the default combo of admin + blank password, which doesn't worki'm starting to doubt they actually know how to block me but if they do, still
just buy your own router.
my roommates as in dorm roommates i'm in high school lol don't bring legal matters into this
Death threats might work.
Did you pay for (or help pay for) the router? If you didn't, I don't think you can legally do anything about it. If it becomes a problem, just buy your own router.
Also, laws still apply to high school students.