Hi! I am using SSL to connect to a MQTT Server. Is works on a TLS1_2 server but on the new one which has priority to TLS1_3 with fallback to TLS1_2. On the new one when I try the QMTCONN it gives +QMTSTAT 0,1 and in the older server I can connect.
Old server:
12:33:53.139 → >> AT+QMTCFG=“version”,0,1
12:33:53.178 → << AT+QMTCFG=“version”,0,1
12:33:53.178 → << OK
12:33:58.526 → >> AT+QMTCFG=“SSL”,0,1,2
12:33:58.526 → << AT+QMTCFG=“SSL”,0,1,2
12:33:58.526 → << OK
12:34:04.219 → >> AT+QSSLCFG=“sslversion”,0,4
12:34:04.219 → << AT+QSSLCFG=“sslversion”,0,4
12:34:04.219 → << OK
12:34:10.291 → >> AT+QSSLCFG=“ignorertctime”,1
12:34:10.327 → << AT+QSSLCFG=“ignorertctime”,1
12:34:10.327 → << OK
12:34:17.220 → >> AT+QSSLCFG=“seclevel”,0,0
12:34:17.220 → << AT+QSSLCFG=“seclevel”,0,0
12:34:17.220 → << OK
12:34:26.263 → >> AT+QIDNSIP=1
12:34:26.263 → << AT+QIDNSIP=1
12:34:26.263 → << OK
12:34:32.142 → >> AT+QIDNSGIP=“******************”
12:34:32.181 → << AT+QIDNSGIP=“******************”
12:34:32.181 → << OK
12:34:33.701 → << 176.61.148.229
12:34:38.670 → >> AT+QMTCFG=“WILL”,0,1,1,0,“vehicle/will_message”,“MatosTeste”
12:34:38.670 → << AT+QMTCFG=“WILL”,0,1,1,0,“vehicle/will_message”,“MatosTeste”
12:34:38.670 → << OK
12:34:43.674 → >> AT+QMTCFG=“KEEPALIVE”,0,15
12:34:43.674 → << AT+QMTCFG=“KEEPALIVE”,0,15
12:34:43.674 → << OK
12:34:56.717 → >> AT+QMTOPEN=0,“******************”,8883
12:34:56.751 → << AT+QMTOPEN=0,“******************”,8883
12:34:56.751 → << OK
12:34:59.797 → << +QMTOPEN: 0,0
12:35:03.503 → >> AT+QMTCONN=0,“MatosTeste”,“****”,“********************”
12:35:03.544 → << AT+QMTCONN=0,“MatosTeste”,“****”,“********************”
12:35:03.544 → << OK
12:35:04.221 → << +QMTCONN: 0,0,0
New Server:
12:35:58.325 → >> AT+QMTCFG=“version”,0,1
12:35:58.325 → << AT+QMTCFG=“version”,0,1
12:35:58.362 → << OK
12:35:59.424 → << SMS Ready
12:36:00.925 → << +QNITZ: “25/10/13,11:36:09+04,1”
12:36:03.891 → >> AT+QMTCFG=“SSL”,0,1,2
12:36:03.891 → << AT+QMTCFG=“SSL”,0,1,2
12:36:03.891 → << OK
12:36:08.939 → >> AT+QSSLCFG=“sslversion”,0,4
12:36:08.939 → << AT+QSSLCFG=“sslversion”,0,4
12:36:08.939 → << OK
12:36:13.697 → >> AT+QSSLCFG=“ignorertctime”,1
12:36:13.697 → << AT+QSSLCFG=“ignorertctime”,1
12:36:13.697 → << OK
12:36:19.204 → >> AT+QSSLCFG=“seclevel”,0,0
12:36:19.204 → << AT+QSSLCFG=“seclevel”,0,0
12:36:19.204 → << OK
12:36:28.921 → >> AT+QIDNSIP=1
12:36:28.921 → << AT+QIDNSIP=1
12:36:28.921 → << OK
12:36:34.638 → >> AT+QIDNSGIP=“*****************”
12:36:34.638 → << AT+QIDNSGIP=“*****************”
12:36:34.638 → << OK
12:36:36.973 → << 176.61.148.229
12:36:40.535 → >> AT+QMTCFG=“WILL”,0,1,1,0,“vehicle/will_message”,“MatosTeste”
12:36:40.535 → << AT+QMTCFG=“WILL”,0,1,1,0,“vehicle/will_message”,“MatosTeste”
12:36:40.535 → << OK
12:36:45.283 → >> AT+QMTCFG=“KEEPALIVE”,0,15
12:36:45.321 → << AT+QMTCFG=“KEEPALIVE”,0,15
12:36:45.321 → << OK
12:36:51.651 → >> AT+QMTOPEN=0,“*****************”,8883
12:36:51.651 → << AT+QMTOPEN=0,“*****************”,8883
12:36:51.691 → << OK
12:36:54.578 → << +QMTOPEN: 0,0
12:36:58.934 → >> AT+QMTCONN=0,“MatosTeste”,“****”,“********************”
12:36:58.934 → << AT+QMTCONN=0,“MatosTeste”,“****”,“********************”
12:36:58.934 → << OK
12:36:59.674 → << +QMTSTAT: 0,1