I'm not 100% sure if this is the right place to ask this, but if it isn't, I'll delete it if need be.
Anyways, in my college dorm, there are ethernet plugs in the wall. Yesterday, the internet was working fine, but today, when I tried using the internet, it'll connect to the (router? group?), but it won't connect to the internet. I've tried the same plug with my roommate's Macbook, and it worked just fine, so I am assuming it is a problem with my computer (or my own incompetence). Normally, I would just try restarting my modem, but that isn't an option here.