It also makes you realise how 5Ghz overlap is likely to be a problem soon
Yes got inssider, n 5ghz will definitely be next.
By the way my neighbours moved in recently and I can hear baby crying. Your theory of baby monitor might be spot on. I cannot tell them to turn it off ?
Baby monitors can certainly cause a reduction in performance. I have one of the BT camera ones that appears to cause slow downs on devices that are at the furthest reaches of the house when it's on and in a certain position. However, this is no different to when next door moved their routers location (signal went from 1 bar to 4 bars) and I would see drops or slow reactions at certain times on 2.4ghz network.
Obviously you cannot tell them to turn it off as it's their house to do as they please and you don't have a right to owning the airwaves in your own house. You could however overpower their signal by putting the mesh network devices around your house.