NRF9160 Certificate Provisioning failed -111 error (Connection refused)

[MehdiChelouah]

 Hello,

I'm trying to add credential to the modem on the nrf9160. However, i keep getting a -111 error when i'm trying to connect to my server with TLS mode.

When i try to display AT%CMNG=1 command that what i get :

And here you can see the certificate i added :

When i use the https_client demo, it works well.

[MehdiChelouah]

Erratum : 

[Didrik Rokhaug]

Hi,

How are you connecting to your server (what socket options do you set, etc.)?

Does your server do any verification of the client?

When i try to display AT%CMNG=1 command that what i get :

Note that %CMNG=1 only lists the credentials that exists, it doesn't read them out. To see if the CA certificate stored in the modem is the one you wrote, you must use op_code 2, read.

Best regards,

Didrik

[MehdiChelouah]

Hey Didrik,

Thanks for your reply,

I solved the problem with certificate but i'm facing another issue. Actually, i'm trying to use the fota_download library. 

But this happens:

[Didrik Rokhaug]

Which file are you downloading?

[MehdiChelouah]

The app_update.bin file that i found in a sample project https_update