only here for a minute - but
I'd say first try connecting to your router.
From a browser page on your pc - enter the router's ip address.
Usually something like 192.168.1.1
(so clear out any http:// stuff where you'd normally enter a web site address - and enter the numbers).
if you connect to your router (either a login page, or some kind of admin menu), it tells you something - and if you don't (error message), that tells you something else.
Unfortunately - that's all I have time to say.
if your router doesn't have the ip address printed somewhere on it - then from another computer google the router brand and you should be able to find it.
(router will have a local side and a network side - it's the local side ip address you want)
wish I had more time - but try it and somebody should be able to help you take it from there.