Okay so get this. I recently added a second network switch to a different room in my house which had 5 devices connected to it. I decided to investigate that situation because none of those devices were getting network access either (didn't get a chance to test them before, only just installed them yesterday). Turns out I used a spare cable to hook up one of the devices and it was actually shorting in the switch (it was actually the first cable I ever made back in the uni days). So because of that short, it took out the main switch too meaning no one was getting internet. I removed the cable and everything works now. This is 11 hours in.
