lwip pppos error while communication

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lwip pppos error while communication

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Sanjay1993
Contributor I

Hi,
I am working on a Quectel EG21 GSM module. This is the following output showing.
GSM initialization start…
AT COMMAND: [AT…]
AT RESPONSE: […OK…]
AT COMMAND: [ATZ…]
AT RESPONSE: […OK…]
AT COMMAND: [ATE0…]
AT RESPONSE: […OK…]
AT COMMAND: [AT+CFUN=1.]
AT RESPONSE: […OK…]
AT COMMAND: [AT+CNMI=0,0,0,0,0…]
AT RESPONSE: […OK…]
AT COMMAND: [AT+CPIN?..]
AT RESPONSE: […+CPIN: READY…OK…]
AT COMMAND: [AT+CREG?..]
AT RESPONSE: […+CREG: 0,1…OK…]
AT COMMAND: [AT+CGDCONT=1,“IP”,“internet”…]
AT RESPONSE: […OK…]
AT COMMAND: [AT+CGDATA=“PPP”,1…]
AT RESPONSE: […CONNECT 150000000…]
GSM initialized…
Error code : 6
status_cb: Connection lost
Disconnected, trying again…
Error code : 5
status_cb: User interrupt (disconnected)

Showing PPP connection is lost.
Expect receiving ip address back as follows.

I (19277) [PPPOS CLIENT]: AT COMMAND: [AT+CGDATA=“PPP”,1…]
I (19297) [PPPOS CLIENT]: AT RESPONSE: […CONNECT…]
I (20297) [PPPOS CLIENT]: GSM initialized.
I (21077) [PPPOS CLIENT]: status_cb: Connected
I (21077) [PPPOS CLIENT]: ipaddr = 10.229.68.97
I (21077) [PPPOS CLIENT]: gateway = 10.64.64.64
I (21077) [PPPOS CLIENT]: netmask = 255.255.255.255
I (21087) [PPPOS CLIENT]: ip6addr = ::

Is there any way that i can troubleshoot this error.
Thanks and Regards
Sanjay

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jeremyzhou
NXP Employee
NXP Employee

Hi @Sanjay1993 ,
Thanks for your reply.
I think I need more information, I was wondering if you can introduce the testing environment, such as the board, demo code, etc.
Have a great day,
TIC

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Omar_Anguiano
NXP TechSupport
NXP TechSupport

Hello
Hope you are well.

Could you tell me the NXP part number you are working with?

Best regards,
Omar

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