August 25, 2013 at 11:32 pm #5853
Why I get no response from the HTTP-Server? Normally every request gets a response, or not? Connection is fine, but Signal-Strengt is only 9 (marginal), maybe this is already the solution?
Here is what the AT Command Tester says:
Checking registration status…
The device is registered in home network.
Checking if socket connection is activated…
cid 1 is not active Activating now..
PDP activation sucess. IP address is 10.33.150.10
Sending HTTP data:
GET /m2msupport/http_get_test.php HTTP/1.1
NO Carrier: Call dis-connectedAugust 26, 2013 at 6:06 am #5897
Did you try a different HTTP server? Try http://en.wikipedia.org/wiki/3GPP in the URL field.August 26, 2013 at 9:25 am #5905
I tried http://en.wikipedia.org/wiki/3GPP but its also the same
AT#SD=1,0,80,"en.wikipedia.org" CONNECT Sending HTTP data: GET /wiki/3GPP HTTP/1.1 Host:en.wikipedia.org Connection:keep-alive NO CARRIER NO Carrier: Call dis-connected
After about 2mins there will be the message No Carrier.
I changed the operating-place, now I have s signal strength of 22, what is excellent.
Normally there should be a response from each HTTP-request, shouldn´t it?August 26, 2013 at 11:18 am #5910
It is strange you’re not seeing any response since PDP activation is sucessful and you’re getting a ‘CONNECT’ response for the TCP connection. What buad connection do you have on the serial port? I’ve seen some issues with auto-baud configuration on the serial port. So I typically set it for a rate.
In the ‘Command mode’ tab, you can do,
Then you need to disconnect and connect again with 38400 as the baud rate on the AT Command Tester.
I’m not saying this is the cause of your issue, just something to check before debugging other things..August 26, 2013 at 11:06 pm #5951
May I know how to send continuous data stream coming from serial port of telit Gl-865 on to webserver. At present I am using HTTP POST request and uploading but the problem I am facing here is that data will uploaded on to remote database only for 14 times and after that it disconnects and again after say 20 sec it starts uploading data.. may I know the problem and solution to it.
GokulAugust 27, 2013 at 2:53 am #5959
Yeah it is really strange… the Connection is already established and the modem gets no Response.
I tried to change the baud-rate but that also had no effect.
Maybe there is a Problem with the sim-card?
I will call the provider!
Or do you have another idea?
thanksAugust 27, 2013 at 4:59 am #5963
It is probably a good idea to check with the SIM provider. Here are other things you could do,
– Put the SIM on a different device (mobile phone) and check if you can verify data connectivity.
– Check voice connectivity (if the SIM supports voice plan) through the ‘Voice’ tab of AT Command TesterAugust 30, 2013 at 10:45 am #6148
Do you have 2 pairs of carriage return/line feed after the “Connection:keep-alive”. The blank line terminates the header – the server will delay processing the request until it receives that, and eventually time out.August 31, 2013 at 9:55 pm #6154
I had flow control enabled and connected me to disconnect AT & K0 and worked perfect.
I would like to ask you to keep Gokul as continuous communication, you can explain?September 1, 2013 at 8:24 am #6161
Thanks for the update..
The default exchange timeout value for the socket is 90 sec. Confirm this by
Check the status of the socket when you think HTTP is not responding,
Check if PDP context is still active,
- This reply was modified 5 years, 9 months ago by Admin.