MC60 takes 3minutes delay to send data over TCP/IP

I’m using mc60 to track some of my devices
there is a problem with sending data
i can receive msg immediately from server
but the other side (which is module to server) takes about 3 minutes !!
here’s the AT’s i use
AT+QIFGCNT=0;+QICSGP=1,“MCINET”;+CGATT?;+ CGDCONT = 1,“IP”,“myip”;+QIOPEN=“TCP”,“myip(the same)”,“my port”

It could be about connection, you should check your antenna.

the antenna and connection was working ok.
the thing is i was using default main code on sdk.
uploading tcp example code did the job and it’s work fine now.