ashish.talaviya
Junior Member level 1
Problem to keep GPRS connection with TCP server
Hello guys,
I'm using Sim 900 for TCP/IP Application. I've TCP test application running on host pc with static IP, I've tune GPRS in transparent mode here is the manual script fro gprs...
for this script I'm able to open socket, and able to send and receive data
now the problem starts after 5 min elapse. gprs modem nothing sends nor receive
i need to inform you all that the entire system that I've tested for 2 month, every thing is working great for 2 month but the problem started just for few days ago
I'm using "Airtel"(I'm suing CUG card) sim card , where as for "idea" sim card the system working fine.
guys any idea?
I'll appreciate all precious comments and Suggestions.
Thanks
Hello guys,
I'm using Sim 900 for TCP/IP Application. I've TCP test application running on host pc with static IP, I've tune GPRS in transparent mode here is the manual script fro gprs...
Code:
AT
OK
Checking Simcard!
AT+CSMINS?
+CSMINS: 0,1
SIMcard is inserted!
AT+CREG?
+CREG: 0,1
Network is registered!
AT+GSN
867330025574495
OK
Device IMEI:867330025574495
AT+CSPN?
+CSPN: "
Service Provider: !dea
Inside apn
!dea
AT+CSTT="internet"
AT+CSTT="airtelgprs.com"
ERROR
AT+CSQ
+CSQ:
Network Strength: 21
AT+CIPSHUT
SHUT OK
AT+CIPMUX=0
OK
AT+CIPMODE=1
OK
AT+CIPSTATUS
OK
STATE:
IP Status: IP INITIAL
AT+CGATT=1
OK
AT+CIICR
ERROR
AT+CIPSTATUS
OK
STATE:
IP Status: IP INITIAL
AT+CIFSR
Local IP: ERROR
AT+CIPSTATUS
OK
STATE:
IP Status: IP INITIAL
AT+CIPSTART="TCP","xxx.xx.xxx.xxx","xxx"
OK
now the problem starts after 5 min elapse. gprs modem nothing sends nor receive
i need to inform you all that the entire system that I've tested for 2 month, every thing is working great for 2 month but the problem started just for few days ago
I'm using "Airtel"(I'm suing CUG card) sim card , where as for "idea" sim card the system working fine.
guys any idea?
I'll appreciate all precious comments and Suggestions.
Thanks
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