I have never had an issue like this before wondered if you had any ideas.
I have several computers on my Wireless/Wired Network. Wireless is dual band and Secured with WP2 Password. Basically on several of my PCs I can see connections to my neighbours computers showing as Windows Media Player Icons. When I first noticed this I fully restored my router (Western Digital) creating new SSIDs and Passwords, however I can still see these computers.
I'm not personally bothered that I can see them as I can always click remove device, I'm more interested WHY I can see them and Can they see my computers as I do have some without Password Protected sharing as I assumed only devices on my network could access these.
Any Ideas its a complete new one on me? My PCs are Running a Mix of Windows 8.1 and 7 and both can see the 2 neighbour computers.
EDIT: I have homegroup set up with a secured password too.