Exs82 cellular modem suddenly unable to post data | Thales IoT Developer Community
July 21, 2021 - 6:07pm, 793 views
Hello,
I have posted data to a server using HTTPS for about two months using an Exs82. But since last week, every time my device tries to post to the server, it is getting the following error after the SISO AT command : "2,0,62,"Unknown internal TLS error".
I tried to post the same command with my computer through postman, and it worked perfectly. So the server side seems to be ok.
So what can explain this sudden issue with Exs82?
My Exs82's FW release is 00.020
Can you help me please?
Best regards,
Aina
Hi Aina,
Since the connection issue appeared suddenly and persists, it stands to reason that something changed in the connection setup. Perhaps server configuration got modified so that right now it requires SNI extension, which wasn't the case before last week? Your EXS82 FW release is one of the early ones and it didn't support SNI yet.
Is your HTTPS server in public domain? If so, could you share its hostname? I could try to connect to it and check if your issue is indeed SNI-related.
BR,
Ida
Hi Ida,
Thank you for your reply. We succeeded to post again with HTTP instead of HTTPS, so it seems like the problem was due to TLS protocol. I will recontact you if we still need to use HTTPS.
Best regards