Help with chapter 1

[SamuelGFX]

I could configure all database, authentication, game and also edited the only host that my friend using hamachi can not access from the canno error get the file, since it sent edit the host with ip of my hamachi but still will not, how can I solve this?

 

[Taiga]

Did you allow the ports inside your Firewall?
Are you sure the user can ping you?