I have a Multitech Dragonfly MTQ-MNG6-B02 which has a Telit ME910G1-WW on it (confirmed with AT commands). I am using the same root CA cert I use with my Telit ME910C1 module (Amazon root CA1). The HTTPS connection always fails unless I use the SSLSECCFG setting to “verify none” (parameter 3 = 0). Again, this is something that works fine with my ME910C1. Command sequence and responses below, though note that the URL below is fake:
AT&K3
AT&K3
OK
AT+CGMI
AT+CGMI
Telit
OK
AT+CGMM
AT+CGMM
ME910G1-WW
OK
AT#SWPKGV
AT#SWPKGV
37.00.426-P0C.420000
M0C.400005
P0C.420000
A0C.420000
OK
AT+CGSN
AT+CGSN
016482000363087
OK
IMEI: 016482000363087
AT+ICCID
AT+ICCID
+ICCID: 89011703278330721237
OK
ICCID: 89011703278330721237
AT+CGDCONT?
AT+CGDCONT?
+CGDCONT: 1,“IPV4V6”,“iot0119.com.attz”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IPV4V6”,“”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 3,“IPV4V6”,“”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 4,“IPV4V6”,“attm2mglobal”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 5,“IPV4V6”,“”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
+CGDCONT: 6,“IPV4V6”,“”,“0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0”,0,0,0,0
OK
AT+CEREG?
AT+CEREG?
+CEREG: 0,1
OK
AT#SCFG=1,1,400,60,300,100
AT#SCFG=1,1,400,60,300,100
OK
AT#SGACT?
AT#SGACT?
#SGACT: 1,0
#SGACT: 2,0
#SGACT: 3,0
#SGACT: 4,0
#SGACT: 5,0
#SGACT: 6,0
OK
AT#SGACT=1,1
AT#SGACT=1,1
#SGACT: 10.0.116.55,
OK
AT#CCLK?
AT#CCLK?
#CCLK: “26/01/12,20:05:23-24,0”
OK
AT+CSQ
AT+CSQ
+CSQ: 26,5
OK
AT+CESQ
AT+CESQ
+CESQ: 99,99,255,255,10,47
OK
AT#SSLEN?
AT#SSLEN?
#SSLEN: 1,0
OK
AT#HTTPCFG=0
AT#HTTPCFG=0
OK
AT#SSLEN=1,1
AT#SSLEN=1,1
OK
AT#SSLSECCFG=1,0,1
AT#SSLSECCFG=1,0,1
OK
AT#SSLSECCFG2=1,3,1,1,0,3
AT#SSLSECCFG2=1,3,1,1,0,3
OK
AT#SSLSECDATA=1,1,1,1205
AT#SSLSECDATA=1,1,1,1205
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE----
OK
AT#SSLSECDATA=1,2,1
AT#SSLSECDATA=1,2,1
#SSLSECDATA: 1,1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE----
OK
AT#SSLEN=1,0
AT#SSLEN=1,0
OK
AT#FTPCFG?
AT#FTPCFG?
#FTPCFG: 100,0,0,1
OK
AT#HTTPCFG=0,“blahblahblah.execute-api.us-east-2.amazonaws.com”,443,0,“xxxxxx”,“xxxxxx”,1,40,1,400,0,0
AT#HTTPCFG=0,“blahblahblah.execute-api.us-east-2.amazonaws.com”,443,0,“xxxxxx”,“xxxxxx”,1,40,1,400,0,0
OK
AT+CMEE=2
AT+CMEE=2
OK
AT#HTTPQRY=0,0,“/prod/api/v1/blahblah/ping?blah=blahblah”
AT#HTTPQRY=0,0,“/prod/api/v1/blahblah/ping?blah=blahblah”
+CME ERROR: connection failed