@Zombielicious Turns out the documentation is missing one important step. If anyone else stumbles upon this post, know that what I had to do to fix it (following this video), was to go into Network...

Hello! So I just bought an Archer C6 AC1200 MU-MIMO router, and the network configuration I am trying to achieve is the following: I have a modem/router from my ISP that is connected to the DSL line...