@Alexandre. After borrowing a friends laptop with a gigabit ethernet port I followed your troubleshooting steps. I started by factory resetting all Decos, just to sort out the weird red light problem...

@Alexandre. Thanks so much for the detailed troubleshooting steps! I'll run through them step by step when my housemates are next not using the internet. So currently I've been using a 20m Cat6 cable...

@Alexandre. Well either way that narrows it down so thank you. I used the same ethernet cable to test the speed from my main Deco and then my modem, and it went from 600Mbps to 900Mbps, so don't...

@Alexandre. I waited around 5 minutes but only had red lights (main deco was solid and other decos flashing). I assumed it was just a bug as I have had issues in the past with these decos displaying...

@Alexandre. So I placed the Decos into AP mode, and while the lights flashed red the app showed them working, in AP mode and could connect fine. Ran a speedtest via ethernet and still the same speed...

So I have 1Gbps internet from my ISP (Virgin Business), but when connected to a Deco with ethernet I only recieve 600Mbps. I have checked the speed when wired to the modem and it is 900Mbps. I have...