hi, i have Phones, TVs and PCs showing on my windows 10 network that i don't own, i did a factory reset router and changed it's name and all passwords, they still apear, surely microsoft should investigate.
Nope. They shouldn't. We were worried over nothing. Nothing at all.
Edit to clarify: What they should do is explain to the scared people in this thread why the neighbor's devices show up in the network and how it's completely benign (harmless.) Maybe even a blue question mark in network view we can click on to read a help article on the relevant networking concepts (pertaining to this issue.)