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Mobile data connection troubleshooting (view source)
Revision as of 15:59, 22 May 2020
, 15:59, 22 May 2020Protected "Mobile data connection troubleshooting" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))
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* You probably won't see anything when you type commands, and that’s because the screen echo may be disabled. '''ATE1''' command will enable it so that you can see what you write. '''AT+QCSQ=0''' and '''AT+CREG=0''' command stops showing unnecessary output:
* You probably won't see anything when you type commands, and that’s because the screen echo may be disabled. '''ATE1''' command will enable it so that you can see what you write.
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ATE1
ATE1
OK
OK
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* Use commands '''AT+QCSQ=0''' and '''AT+CREG=0''' to stop showing unnecessary output:
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at+qcsq=0
at+qcsq=0
OK
OK
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==Debugging process==
==Debugging process==
* If PIN is required, initialize modem with your PIN code:
* If PIN is required, initialize modem with your PIN code:
'''Note:''' reboot the module if it fails to identify SIM
'''Note:''' reboot the module if it fails to identify SIM
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* Use command '''AT+CREG''' to check GSM connection:
*Use command '''AT+CREG''' to check GSM connection:
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AT+CREG?
AT+CREG?
''<authentication>'' The authentication methods (0 – NONE; 1 – PAP; 2 – CHAP; 3-PAP or CHAP).
''<authentication>'' The authentication methods (0 – NONE; 1 – PAP; 2 – CHAP; 3-PAP or CHAP).
Example: use '''AT+QICSGP=1,1,"APN_Name","","",1'''
Example: '''AT+QICSGP=1,1,"APN_Name","","",1'''
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AT+QICSGP=1,1"bangapro","","",1
AT+QICSGP=1,1"bangapro","","",1
'''Note:''' if ping a remote server successfully, response is '''OK''' (means that the module works properly). If there is any error, response is '''ERROR''' (means the problem is in the module).
'''Note:''' if ping a remote server successfully, response is '''OK''' (means that the module works properly). If there is any error, response is '''ERROR''' (means the problem is in the module).
==Example for the provided configuration==
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root@Teltonika:~# ifdown ppp
root@Teltonika:~# ifdown ppp
