Find Sessions not working in LAN

Hi i created a Blueprint to find sessions when a button is pressed, but for some reason it can’t find any sessions when i try it in LAN, it works when i run the client and server on my computer.

it does not work when enabling “use LAN” boolean

i also added this in defaultengine.ini:

[OnlineSubsystem]
 DefaultPlatformService=LAN

all help is welcome, thanks.