Communication problems C / S mode! ! !

            


I wrote a C / S mode programs. Data after its main function is background (SERVER) receives Front (CLIENT) request the necessary data processing, then back to the front desk to the required transfer back to the front desk. Tested on the simulator, and very normal. But put on a cell phone will not work: The front desk can receive a message back, but the data can not be received. Send the data back to the front desk started to quit unexpectedly.
The reason has not been found, is depressed, experts urged.
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I do not know the code and the code on the phone simulator on whether there is a big difference. If you have (communications), mainly those places?
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Code sent me leadwill@gmail.com
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I also want to copy the code btsy2000@hotmail.com
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I also wrote a similar stuff, welcomed the exchange.
Code sent me clxnj@vip.sina.com
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ding ^^^^^^^^^^^^^^^^^^^^^^^^^^
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ding .................................