Trying to do a survey of my Wi-Fi system as part of a computer science assignment (I'm trying to get the download and upload speed of my device when it's connected to each uni). I have 3 Deco units. Disabling the Mesh in the Deco app for a specific device doesn't seem to work anymore. When I disable mesh, the device still reconnects to a nearer unit as I move around the house. I have tried force stopping the Deco app, forced my device to connect to guest network, and logging out and in into the Deco app.

Any way to get disable mesh working again? Or is there a way to force my device to connect to a specific Deco unit?