I copied this from my reddit post
All 3 of my desktops are on Win 10 pro, one for my Minecraft server, my main one, and my sister's pc, my laptop is on Win 10 home.
Apparently all the desktops on my LAN have stopped working with remote desktop. The problem first occurred a day ago when remote desktop lost connection while I was remoted into my server pc from my main pc. I tried using my sister's desktop to remote in to either one and that also failed. then I tried vise versa but that still failed. However, my laptop connected through wifi is able to remote into every pc. I've tried disabling firewall on all computers and that didn't work. Command Prompt shows that none of the desktops are able to ping each other, only themselves. Meanwhile, command prompt on my laptop is getting positive ping tests to every desktop, not from them, however. This was working fine a day ago, until remote desktop just lost connection. When I did lose connection, my main pc lost network connection so I suspect that did something to remote desktop, however, that doesn't explain why my sister's pc also won't work with remote desktop. so in the end, none of the desktops are able to remote into eachother, only my laptop is able to remote in. I forgot to mention that remote desktop gives me the three generic reasons for not being able to remote in from the desktops