Hello,
We are facing an issue communicating with url (https://www.howsmyssl.com/a/check) . we do have a valid certificate of it (tested ok different sysyem) . but I’m not sure why the module responding “+CME ERROR: 3804”
below the command list which are using for it.
we first are uploading certificates using “AT+QSECWRITE=“RAM:ca_cert.pem”,1970,100” which give response OK. looks fine.
then sending all below commands which also responding OK.
AT+QIFGCNT=0
AT+QICSGP=1,“internet”
AT+QIREGAPP //Register to TCP/IP stack.
AT+QIACT
AT+QILOCIP
AT+QSSLCFG=“sslversion”,1,4
AT+QSSLCFG=“seclevel”,1,1
AT+QSSLCFG=“ciphersuite”,1,“0X0005”
#AT+QSSLCFG=“ciphersuite”,1,“0XFFFF” //0XFFFF - All cipher suites.
AT+QSSLCFG=“cacert”,1,“RAM:ca_cert.pem”
AT+QSSLCFG=“ignorertctime”,1
AT+QSSLCFG=“https”,1
AT+QSSLCFG=“httpsctxi”,1
AT+QHTTPURL=33,30
https://www.howsmyssl.com/a/check
AT+QHTTPGET=60
AT+QHTTPREAD=30
when reading http request it gives response +CME ERROR: 3804
tried wth all security level and ssl version.
One more thing to mention that in case of HTTP its working fine where as getting error for HTTPS connection.
Appreciate your help,