Problem with connecting to server with SIM300C

[abhiimittal]

Re: SIM300C CONNECT FAIL

Hi Benik

U mentioned that u got it working with vodafone. Please let me know the at commands that u used. I specifically want to know the DNS

 

[rituparnasaikia]

SIM300C CONNECT FAIL

at+cipshut
SHUT OK
at+cgatt=1
OK
at+cgdcont=1,"IP","TATA.DOCOMO.INTERNET"
OK
at+cdnscfg="10.124.94.7"
OK
at+cstt="TATA.DOCOMO.INTERNET"
OK
at+CIICR
OK
at+cifsr
182.156.104.161
at+cipstatus
OK

STATE: IP STATUS
at+ciphead=1
OK
at+cdnsorip=1
OK
at+cipstart="tcp","www.google.com","80"
OK

CONNECT OK


above code is working

 

[joydeepsarkar87]

Re: SIM300C CONNECT FAIL

@Rituaparnasaikia

I use the same code as yours but it doesnot work out the way wanted. whenever i use at+cipstart="TCP","173.194.33.104","80"


it throws an error...

 

[rituparnasaikia]

SIM300C CONNECT FAIL

Who is the service provider?
Can you send me the command detail ?
take a screen shoot and send it.

 

[Pandian M]

Hi Friend,
Now, I have same proble like this:

STATE: TCP CONNECTING
CONNECT FAIL

I dont know about this Error. Supposing u have solution to this, pls send or post to me.

Thank U.....

 

[pappu_sam]

Re: SIM300C CONNECT FAIL

Hi Everyone!
Good news is i m able to connect with a vodafone sim card
but I m trying with TATA DOCOMO(India). I m unable to get a response from the server(google.com)
Kindly help me.
i m sticking my code here:
AT+CGATT=1
AT+CGDCONT=1,"IP","TATA.DOCOMO.INTERNET"
AT+CSTT="TATA.DOCOMO.INTERNET","",""
AT+CIICR
AT+CIFSR >>115.118.93.58
AT+CDNSCFG ="0.0.0.0","0.0.0.0"
AT+CIPHEAD=1
AT+CDNSORIP=1
AT+CIPSTART="TCP","www.google.com","80"
>>OK
>>Connect OK
AT+CIPSEND
>> GET / HTTP/1.1 ^m ^j
Host:www.google.com^m^j
Accept: */*^m ^j
Accept-Language: en-us ^m ^j^m ^j^Z

***************************
I dont get any response thereafter.after ten mins it says CLOSED as i understand timer runs out. But, if i give AT+CIPSTATUS
>>Connect ok
:|
I m stuck here.. i read most the help.. i m unable to solve here.
Kindly help
But i can work with vodafone sim ofcourse there i use proxy ip:10.10.1.100 and proxy port:9401 given in their website

I need some real help!!!
I m unable to get the data. I still have to work for uploading the Data too

Thanks in advance!!!

Hi benikvarun,

I had also faced same problem,
and I solved it.
here few changes required,
you need to specify how many bytes are you going to send
i.e. like AT+CIPSEND=50
and then you need to send data
you will get response as SEND OK and some http content of google.com

 

[parshant]

Re: at+cdnscfg

Hello Sir,
In my case , when i am using command at+cdnsorip.it is giving error.
Please tel how can i remove this error.

Thanks.