Server address: It is an IP Address of the system where the ApwarpS2 server is running.
Port : Send port as 12346.
If the problem continues, could you please explain more about the error you are getting. It should send some resultCode byte response, please print that and share it with us.
Also, for mobile, use AppWarpS2UnityMobile.dll.
The serverAddress and the ServerPort will remain same for all the platforms.
Thanks & Regards,