@TornadoTP Something is not right in the story you are telling. If you are getting weak 2.4GHz signal from the WiFi node, the 5GHz signal from the same node will be non-existent. That is the point of...

@Akinto It is the requirement to have Main Deco connected to modem by Ethernet cable. There is no other way with Deco mesh.

@ukblue Deco units come with standard Ethernet cable. You may be trying to plug it to telephone port of your BT box, instead of Ethernet port. Telephone and Ethernet ports look alike, but telephone...

@TornadoTP With my Deco mesh running in AP mode I solved this for Android smartphones by disabling 2.4GHz on Main Network. For other devices you may wish to google "wifi roaming aggressiveness" and...

@DrSpring Depends on hardware version and, possibly, region. For example, for US and Canada, X20 with hardware 1.0 and 1.2 have AP network isolation, with hardware 2.0 do not (yet?). Check TP-Link...

@AnthR Are you sure it is Fast Roaming (per network) and not Mesh Technology setting (per device) that impacts your vacuum? Have you tried, after connecting robovac to Deco mesh, enabling Fast...