@drew1998 I would suggest you try this layout (sorry for crude edits):

@drew1998 Either myself or yourself are missing something here. Can you run two more tests to see what's up? For that, you'll need Main Deco and one Satellite Deco, and please keep second Satellite...

@ATM1977 Have you checked that perhaps browser VPN extension is configured in Chrome? If Edge and IE are blocked, that would be the first thing to check in Chrome.

@EmmBee If you like messing with tuning networking gear configuration ofter, and prefer do that through Web interface, Deco is not the right mesh system for you. If, on the other hand, you'd rather...

@Gorgia What does Signal Source show for Satellite Deco, in Deco app? Weak signal to Main Deco could impact Satellite performance greately.

Danny_W wrote @Alexandre. When connected directly to the main M4 via ethernet I'm getting around 300mbps, and similar speeds again when connected to 5Ghz and standing 2 metres away. Yet if I connect...