Secure TCP Client issue on RC7620 while using Authenticate server option

We were using a non secure TCP client on the modem to succesfully transmit data to our server for some time now. Recently we wanted to switch to secure client due to security reasons. But unfortunatly we could not.

Just to debug the issue better, I wanted to test it with “google.de” using the “GlobalSign Root CA” root certificate. But it did not work either. This is the procedure I have used.

AT+KCERTSTORE=0,1261
CONNECT

OK
AT+KSSLCRYPTO=0,8,1,8192,4,4,1
AT+KTCPCFG=1,3,“google.de”,443
AT+KTCPCNX=1

Always ends up with +KTCP_NOTIF: 1,13

However If I used AT+KSSLCRYPTO=0,8,1,8192,4,4,0 (I guess without server authentication). It seems to work. +KTCP_IND: 1,1

seems same issue as this one…

Yes. It could be the same issue.

Initially we were using “Revision: SWI9X07H_00.03.03.00 2bb7a4 jenkins 2020/04/15 07:57:29”. However we also upgraded the firmware to “Revision: SWI9X07H_00.08.07.00 0ce4c1 jenkins 2021/03/17 02:18:20” but it did not fix the issue.

So is there a status update for the tracker “MOLRC9X07-274" ?

There is no update…
But i think you can make some test on newer fw next month and see if you can get over this