Changed my dns on lollipop, now I don't have an internet connection

[AC Question]

So I changed my DNS to Google's and I added everything it asks, ipv4 adress, gateway and DNS servers but when I open chrome it tells me I'm offline, don't know what to do since this works on my phone and it used to work fine on my old 4.1 tablet. I really need this, so if someone could help me I would really appreciate it.. Thanks !