Error while connecting GSM module Quectel EG21 using PPPos

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

Hi Sanjay,Thanks for your question. I have two small questions to confirm. One is can the module access the Internet normally after setting this APN? Second, the instruction display is not complete. Could you please give the complete AT instruction? And can you use AT+QGMR to check the firmware version you are currently using?Thank you.