delphi - connection refused when I try to connect client with server -

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i made basic client / server datasnap applications , work in local network through http when tried connect internet connection refused, here steps followed:

i set @ server component tdshttpservice connect through port no 8081 in client set use same port in tsqlconnection component, , used pc public ip in hostname when try connect connection refused.

any advise ?

forgot client firemonkey app running on android.

enter image description here

you should go router admin console, find "port forwarding" , route port (8081) computer ip - have router traffic on port should go computer


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