problem using recv with responses over 2k using httpshttps://devzone.nordicsemi.com/f/nordic-q-a/80942/problem-using-recv-with-responses-over-2k-using-httpsI have an https connection (sending json) that works fine when the response is less 2k. But for responses (from the server) that are over 2048 bytes, recv returns 0 bytes. :( nrf9160 1.5.1 SDK https/TLSen-USTelligent Community 13Fri, 22 Oct 2021 17:07:47 GMTRE: problem using recv with responses over 2k using httpshttps://devzone.nordicsemi.com/thread/335542?ContentTypeID=1Fri, 22 Oct 2021 17:07:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e28988f4-30b1-426c-8545-f48a2866d2baIan Johnson<p>Thank you for the quick response!</p><div style="clear:both;"></div>RE: problem using recv with responses over 2k using httpshttps://devzone.nordicsemi.com/thread/335406?ContentTypeID=1Fri, 22 Oct 2021 07:02:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e9dadb9d-ff45-46de-8e54-aee9466435c0&#216;yvind<p>Hello,&nbsp;<br /><br />The modem has a known TLS limitation of 2kB secure socket buffer size, documented in the modem FW release notes:<br /><br /><pre class="ui-code" data-mode="text">*** Limitations *************** - TLS/DTLS - Up to three simultaneous TLS/DTLS connections are possible. It is recommended to free the modem resources by closing unused network sockets. - Maximum server certificate chain size has a limit of 4kB. - Server certificate expiry time is not verified. - pkcs#8 is not supported. - Absolute maximum number of supported credentials is 32. The actual amount depends on size of credentials as memory area reserved for credentials may be a limiting factor as well. - DTLS supports PSK authentication only. - 2kB secure socket buffer size.</pre></p> <p>Kind regards,<br />Øyvind</p><div style="clear:both;"></div>