@Dd99 You have such an asymmetrical download/upload speed results that make me suspect device you use for speed testing is connected through VPN. Make sure you turn off VPN on device before running...

@welikegoats You do realize that "using different port" means you had to unplug/plug back cable and perhaps move cable a little, bend it a bit, etc. If cable is borderline to fail, especially around...

@Alexmesh You should keep Fast Roaming and Beamforming enabled. Make sure Mesh is enable for every mobile device you want to roam between Deco nodes. See configuration guide article: Get to Know Fast...

@welikegoats I would suggest to replace Ethernet cable. If it works now, just leave it as is, but if/when same issue comes back - the first step should be Ethernet cable replacement.

@Andeh1 Start with this: General questions about Ethernet Backhaul feature on your Deco

@IntrovertSins I would suggest to try multiple devices for speed tests. If you only used laptop, there might be a problem with its network card or compatibility with Deco. I am really doubtful WiFi6...