Hi the LAN does not work for me and my sister im not sure if its just me or if anyone else have has this issue im going to Clear Somethings up

1. We are connect to the same internet

2. Firewall on both computers let minecraft enter the network

3. we even try ed to turn fire wall off

So.... the LAN finder does not detect any open LAN worlds for us and the Localhost:(and the number you get) does not work ether i try ed making my own server just for us, portforwarded was done and even if we try localhost:25565 on direct connect it still does not work all we get is this error message ( java.net.connectexception connection timed out ) all other servers work and we are in the same version please help. i don't want to pay for a hosted server just to play with my sister so please help.