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I have a native iPhone app that connects to a client machine via sockets. The connection works over WIFI but does not work over 3G.
Does anyone have ideas what the issue could be?
Thank you.
UPDATE: The client machine is not on the same network as the iPhone.
The issue is that some cellular networks block certain ports. This is why it worked over WIFI but not 3g. One of the reasons why it is better to use web services.