Hi,
We move our design from BG96 to BG95-M3 and got the following problem with the MQTT server connection:
When opening the MQTT Connection with SSL (AT+QMTOPEN) we always get 0,4 (Failed to Parse domain name). Same sequence running on our BG96 is working fine. See log:
RDY
APP RDY
ATV1
OK
ATE1
OK
AT+CSQ
+CSQ: 99,99
OK
AT+QGPS=1
OK
AT+CSQ
+CSQ: 99,99
OK
10:05:43: AT+CSQ
+CSQ: 10,99
OK
AT+QMTDISC=0
OK
AT+QMTCLOSE=0
ERROR
AT+QICSGP=1,1,"myApn","","",1
OK
AT+QFDEL="*"
OK
AT+QFUPL="ca.crt",1432,500
CONNECT
+QFUPL: 1432,1470
OK
AT+QFUPL="client.crt",1322,500
CONNECT
+QFUPL: 1322,421
OK
AT+QFUPL="client.key",1675,500
CONNECT
+QFUPL: 1675,704a
OK
AT+QSSLCFG="cacert",2,"ca.crt"
OK
AT+QSSLCFG="clientcert",2,"client.crt"
OK
AT+QSSLCFG="clientKey",2,"client.key"
OK
AT+QSSLCFG="sslversion",2,4
OK
AT+QSSLCFG="seclevel",2,2
OK
AT+QSSLCFG="ciphersuite",2,0xFFFF
OK
AT+QSSLCFG="sni",2,1
OK
AT+QMTCFG="version",0,4
OK
AT+QMTCFG="keepalive",0,10
OK
AT+QMTCFG="session",0,0
OK
AT+QMTCFG="ssl",0,1,2
OK
AT+QMTCFG="will",0,1,2,0,"will/0062001/v1/004121004","Disconnected"
OK
AT+QMTOPEN=0,"mqtt.dev.myServer.com",8883
OK
+QMTOPEN: 0,4
If we replace
AT+QMTOPEN=0,"mqttv1.dev.myServer.com",8883
by the IP address
AT+QMTOPEN=0,"40.60.xx.xx",8883
it’s working fine…
We also try with
AT+QSSLCFG=“sni”,2,1
AT+QSSLCFG=“sni”,2,0
it doesn’t change anything
Thanks for your help!
