Why i can use internet only with port 80 or HTTP only ?

Dear All

I need some one help or give me the way how to fix my Mikrotik’s Server because all my client that used behind MikroTik’s server with authentication Hotspot service just only can work with Protocol HTTP (80) if other application or website that use with other port it not working.

So let me clear my question again that i want to know how to configure that all my client can use with other application that use with other port 80?

Thank you for your kind respond,

Sothy