I have relatives in the apartment below. They've asked to share our internet. I'm concerned about: 1. Loss of speed (I have 75up/down) might not be an issue 2. Security - access to IP cams, NAS and other devices on my network 3. Their kids clicking downloading viruses, clicking on google ads that later result in my accounts getting tied up (due to being on the same IP) 4. Suggested ads/privacy - my Google searches/web history leading to them seeing ads for Russian brides (lol - I'm happily married, not to a Russian bride) Does anyone know if there are any other issues to be concerned with and also is there a way to set up the router that separates all traffic and devices on each network?