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SIM300连GPRS为什么总是连接失败，求高人指教？
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AT+CDNSORIP=0
OK
AT+CIPSPRT=0
OK
AT+CIPHEAD=1
OK
AT+CIPCSGP=1,"CMNET","LHL","123654"
OK
AT+CGDCONT=1,"IP"
OK
AT+CGATT=1
OK
AT+CGACT=1,1
OK
AT+CIPSTART="TCP","222.171.12.***","8080"
OK
AT+CIPSTART="TCP","222.171.12.***","8080"
ERROR
STATE: TCP CONNECTING
CONNECT FAIL
以上是我连GPRS时在串口助手发送的指令，本人校园网用户，根据花生壳上显示的外网IP地址为"222.171.12.***"，用Socket作一个监听端口，端口号为8080，不知为何总是连接失败
OK
AT+CIPSPRT=0
OK
AT+CIPHEAD=1
OK
AT+CIPCSGP=1,"CMNET","LHL","123654"
OK
AT+CGDCONT=1,"IP"
OK
AT+CGATT=1
OK
AT+CGACT=1,1
OK
AT+CIPSTART="TCP","222.171.12.***","8080"
OK
AT+CIPSTART="TCP","222.171.12.***","8080"
ERROR
STATE: TCP CONNECTING
CONNECT FAIL
以上是我连GPRS时在串口助手发送的指令，本人校园网用户，根据花生壳上显示的外网IP地址为"222.171.12.***"，用Socket作一个监听端口，端口号为8080，不知为何总是连接失败
你检测到的IP是否为经路由器分配的IP
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