Ironically enough, I had manually set the DNS in my ethernet connection. Once I've reset the ethernet configurations, sure enough, it worked haha. A bit dumb from my part, but again, how would I know...

So I just bought the Archer C80, thinking that it would have more and better capabilites than TL-WR841N, but I was wrong... Well, partly. The Archer C80, and most other newer routers have more...