I think I am making progress but still not there yet. I have successfully loaded the certificate as per your instructions and the behaviour is different as follows:-
AT+KHTTPCFG=1,“myurl”,443,2,0
+KHTTPCFG: 1
OK
+KCNX_IND: 1,1,0
+KHTTP_ERROR: 1,5
I also keep getting CME ERROR:92 Error due to invalid state of session - what dies this mean and how can it be addressed.