Quectel EC200U module QMTOPEN command response issue

Technical Subjects
1

+QMTOPEN gives response as network connect error while the network is available. Because google ping gives response.
I am not getting how to remove this error.
I am sharing my logs here.
[2022-10-14_10:37:55:348]AT

[2022-10-14_10:37:55:348]OK
[2022-10-14_10:37:56:355]ATI

[2022-10-14_10:37:56:355]Quectel
[2022-10-14_10:37:56:355]EC200U
[2022-10-14_10:37:56:355]Revision: EC200UCNAAR02A10M08

[2022-10-14_10:37:56:355]OK
[2022-10-14_10:37:57:457]AT+CPIN?

[2022-10-14_10:37:57:457]+CPIN: READY

[2022-10-14_10:37:57:457]OK
[2022-10-14_10:37:58:461]AT+CREG?

[2022-10-14_10:37:58:461]+CREG: 0,1

[2022-10-14_10:37:58:461]OK
[2022-10-14_10:37:59:460]AT+CGREG?

[2022-10-14_10:37:59:460]+CGREG: 0,1

[2022-10-14_10:37:59:460]OK
[2022-10-14_10:38:00:460]AT+CSQ

[2022-10-14_10:38:00:460]+CSQ: 21,99

[2022-10-14_10:38:00:460]OK
[2022-10-14_10:38:01:459]AT+COPS?

[2022-10-14_10:38:01:459]+COPS: 0,0,“Airtel”,7

[2022-10-14_10:38:01:459]OK
[2022-10-14_10:38:02:450]AT+QICSGP=1,1,“airtelgprs.com”,“”,“”,0

[2022-10-14_10:38:02:450]OK
[2022-10-14_10:38:03:454]AT+QIACT=1

[2022-10-14_10:38:03:454]OK
[2022-10-14_10:38:04:453]AT+QIACT?

[2022-10-14_10:38:04:453]+QIACT: 1,1,1,“100.77.151.118”

[2022-10-14_10:38:04:453]OK
[2022-10-14_10:38:21:263]AT+QFUPL=“UFS:AmazonRootCA1.pem”,1187,100

[2022-10-14_10:38:21:263]CONNECT
[2022-10-14_10:38:30:150]+QFUPL: 1187,2d19

[2022-10-14_10:38:30:150]OK
[2022-10-14_10:38:42:161]AT+QFUPL=“UFS:client.pem”,1224,100

[2022-10-14_10:38:42:161]CONNECT
[2022-10-14_10:38:53:955]+QFUPL: 1224,6912

[2022-10-14_10:38:53:955]OK
[2022-10-14_10:39:15:350]AT+QFUPL=“UFS:key.pem”,1675,100

[2022-10-14_10:39:15:350]CONNECT
[2022-10-14_10:39:17:159]+QFUPL: 1675,272f

[2022-10-14_10:39:17:159]OK
[2022-10-14_10:40:08:152]AT+QMTCFG=“recv/mode”,0,0,1

[2022-10-14_10:40:08:152]OK
[2022-10-14_10:40:09:155]AT+QMTCFG=“SSL”,1,1,1

[2022-10-14_10:40:09:155]OK
[2022-10-14_10:40:10:158]AT+QSSLCFG=“cacert”,1,“UFS:AmazonRootCA1.pem”

[2022-10-14_10:40:10:158]OK
[2022-10-14_10:40:11:157]AT+QSSLCFG=“clientcert”,1,“UFS:client.pem”

[2022-10-14_10:40:11:157]OK
[2022-10-14_10:40:12:160]AT+QSSLCFG=“clientkey”,1,“UFS:key.pem”

[2022-10-14_10:40:12:160]OK
[2022-10-14_10:40:13:161]AT+QSSLCFG=“seclevel”,1,2

[2022-10-14_10:40:13:161]OK
[2022-10-14_10:40:14:150]AT+QSSLCFG=“sslversion”,1,4

[2022-10-14_10:40:14:150]OK
[2022-10-14_10:40:15:148]AT+QSSLCFG=“ciphersuite”,1,0xFFFF

[2022-10-14_10:40:15:148]OK
[2022-10-14_10:40:16:148]AT+QSSLCFG=“ignorelocaltime”,1,1

[2022-10-14_10:40:16:148]OK
[2022-10-14_10:40:17:159]AT+QMTCFG=“VERSION”,1,4

[2022-10-14_10:40:17:159]OK
[2022-10-14_10:40:27:956]AT+QMTOPEN=1,“a2a2fghrg-ats.iot.us-west-2.amazonaws.com”,8883

[2022-10-14_10:40:27:956]OK
[2022-10-14_10:40:29:757]
[2022-10-14_10:40:29:757]+QMTOPEN: 1,5
[2022-10-14_10:40:37:157]AT+QMTCONN=1,“test”

[2022-10-14_10:40:37:157]ERROR

Please support where is error

2

5 Indicates that the network is disconnected, causing the error
Use QPING to test whether the network is still connected
AT+QPING=1,8.8.8.8

4

Thanks for your reply.
I have perform the PING AT Command. It is running. I am shaing my logs.
But +QMTOPEN error is still same.

Please support to remove error.

Logs:
[2022-10-15_10:35:33:860]AT

[2022-10-15_10:35:33:860]OK
[2022-10-15_10:35:34:861]ATI

[2022-10-15_10:35:34:861]Quectel
[2022-10-15_10:35:34:861]EC200U
[2022-10-15_10:35:34:861]Revision: EC200UCNAAR02A10M08

[2022-10-15_10:35:34:861]OK
[2022-10-15_10:35:35:866]AT+CPIN?

[2022-10-15_10:35:35:866]+CPIN: READY

[2022-10-15_10:35:35:866]OK
[2022-10-15_10:35:36:866]AT+CREG?

[2022-10-15_10:35:36:866]+CREG: 0,1

[2022-10-15_10:35:36:866]OK
[2022-10-15_10:35:37:869]AT+CGREG?

[2022-10-15_10:35:37:869]+CGREG: 0,1

[2022-10-15_10:35:37:869]OK
[2022-10-15_10:35:38:872]AT+CSQ

[2022-10-15_10:35:38:872]+CSQ: 23,99

[2022-10-15_10:35:38:872]OK
[2022-10-15_10:35:39:863]AT+COPS?

[2022-10-15_10:35:39:863]+COPS: 0,0,“Airtel”,7

[2022-10-15_10:35:39:863]OK
[2022-10-15_10:35:40:870]AT+QICSGP=1,1,“airtelgprs.com”,“”,“”,0

[2022-10-15_10:35:40:870]OK
[2022-10-15_10:35:41:872]AT+QIACT=1

[2022-10-15_10:35:41:872]OK
[2022-10-15_10:35:42:863]AT+QIACT?

[2022-10-15_10:35:42:863]+QIACT: 1,1,1,“100.122.160.70”

[2022-10-15_10:35:42:863]OK
[2022-10-15_10:35:43:867]AT+QMTCFG=“recv/mode”,0,0,1

[2022-10-15_10:35:43:867]OK
[2022-10-15_10:35:44:870]AT+QMTCFG=“SSL”,1,1,1

[2022-10-15_10:35:44:870]OK
[2022-10-15_10:35:45:871]AT+QSSLCFG=“cacert”,1,“UFS:AmazonRootCA1.pem”

[2022-10-15_10:35:45:871]OK
[2022-10-15_10:35:46:863]AT+QSSLCFG=“clientcert”,1,“UFS:client.pem”

[2022-10-15_10:35:46:863]OK
[2022-10-15_10:35:47:863]AT+QSSLCFG=“clientkey”,1,“UFS:key.pem”

[2022-10-15_10:35:47:863]OK
[2022-10-15_10:35:48:972]AT+QSSLCFG=“seclevel”,1,2

[2022-10-15_10:35:48:972]OK
[2022-10-15_10:35:49:962]AT+QSSLCFG=“sslversion”,1,4

[2022-10-15_10:35:49:962]OK
[2022-10-15_10:35:50:970]AT+QSSLCFG=“ciphersuite”,1,0xFFFF

[2022-10-15_10:35:50:970]OK
[2022-10-15_10:35:51:972]AT+QSSLCFG=“ignorelocaltime”,1,1

[2022-10-15_10:35:51:972]OK
[2022-10-15_10:35:52:962]AT+QMTCFG=“VERSION”,1,4

[2022-10-15_10:35:52:962]OK
[2022-10-15_10:35:53:963]AT+QMTOPEN=1,“a1a2qg6-ats.iot.us-west-2.amazonaws.com”,8883

[2022-10-15_10:35:53:963]OK
[2022-10-15_10:35:55:372]
[2022-10-15_10:35:55:372]+QMTOPEN: 1,5
[2022-10-15_10:35:58:974]AT+QPING=1,“8.8.8.8”

[2022-10-15_10:35:58:974]OK
[2022-10-15_10:35:59:160]
[2022-10-15_10:35:59:160]+QPING: 0,“8.8.8.8”,64,49,255

[2022-10-15_10:35:59:160]+QPING: 0,“8.8.8.8”,64,30,255

[2022-10-15_10:35:59:160]+QPING: 0,“8.8.8.8”,64,45,255

[2022-10-15_10:35:59:160]+QPING: 0,“8.8.8.8”,64,46,255

[2022-10-15_10:35:59:160]+QPING: 0,4,4,0,30,49,44

5

AT+QIDNSGIP=1,“a1a2qg6-ats.iot.us-west-2.amazonaws.com”