At+cipstart tcp closed connect fail error

AT
OK
AT+CIPSHUT=0
ERROR
AT+CIPSHUT
SHUT OK
AT+CIPMUX=0
OK
AT+CGATT?
+CGATT: 1
OK
AT+CSTT=’ “airtelgprs.com”,"",""
OK
AT+CIICR
OK
AT+CIFSR
100.99.48.151
AT+CIPSTART="TCP ",“192.168.0.156”,“9040”
OK

STATE: TCP CLOSED

CONNECT FAIL

This is what i get no matter how many times i try. I used it with a prepaid sim, i tried with another services and post also. Only once i was succesfull about 2 weeks, I have used same procedure as above and also searched many and couldn’t find any valid solution. hope some of you help me.

Server might be refusing connection or the port might be closed. Try using socket test software to see if port is open.