Apache Server and IIS server on same Server

Dear All,
Apache and IIS servers can run on same server under same IP address using different ports. I did it and working properly in locally. but it is unable to even browse for the web site run on Apache server remotly. I’m using port 80 for IIS and port 8080 for Apache.
Please guide me to make both my sites to work properly. and if there are any other options please let me to study and apply those.

Thank you
Gayani edirisnghe