unet LAN not working

Ok so i followed a toturial on how to make a multiplayer fps.
It worked just fine when i ran the project in unity and in a build. It also worked when i used 2 builds on the same computer. However when i try to connect another computer it wont work. The host works fine but you cant connect as a client. I use the network managerhud and all that. Remember 2 builds on the same computer worked and both computers are on the same network. Any help would be apreciated. THX

Did you change the IP address on one of the versions? If you had them both set to local host you would need to change the IP address to whatever your router assigned to the server computer. Something like 192.168.1.xxx.