3339730 - SSSLERR_NO_SSL_RESPONSE

When performing a connection test from a SM59 Type G destination (HTTP Connections to External Server), the response is as below

• SSL handshake with <target server hostname>:<target server HTTPS port> failed: SSSLERR_NO_SSL_RESPONSE (-75)#Server did not respond with SSL/TLS protocol to our ClientHello handshake proposal#SapSSLSessionStartNB()==SSSLERR_NO_SSL_RESPONSE##

On a level 1 ICM trace file (dev_icm), similar entries as below can be seen

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

• [Thr 140356661958400] *** ERROR => Peer is no SSL/TLS Server ["HTTP/" 48 54 54 50 2f] [ssslsecu.c   6073]
  [Thr 140356661958400]   Target Hostname="<target server hostname>"
  [Thr 140356661958400]   SSL NI-hdl 81: local=<client instance IP address>:<port number>  peer=<target server IP address>:<port number>
  [Thr 140356661958400] <<- ERROR: SapSSLSessionStartNB(sssl_hdl=7fa730001c20)==SSSLERR_NO_SSL_RESPONSE
  [Thr 140356661958400] *** ERROR => SSL handshake with <target server IP address>:<port number> failed: SSSLERR_NO_SSL_RESPONSE (-75)
  [Thr 140356661958400] Server did not respond with SSL/TLS protocol to our ClientHello handshake proposal
  [Thr 140356661958400]
  [Thr 140356661958400] SapSSLSessionStartNB()==SSSLERR_NO_SSL_RESPONSE
  [Thr 140356661958400]
  [Thr 140356661958400]  \{00020003\} {root-id=000C29A651B51EDDBBC566D9A95A2C27} [icxxconn.c 2659]
  [Thr 140356661958400]              GUI <session ID>, 140, <user>, <client host terminal>, time=11:11:50, W0, program=RSHTTPPIN, high priority, memory=0, tasks=1, appl info=, tcode=SM59
  [Thr 140356661958400]              role: Client, protocol: H2, local: <client instance IP address>:<port number>, peer: <target server IP address>:<port number>

SAP Kernel all versions, for most cases.

SAP Kernel versions of SAP Note 2124480, for SNI issues.

ssl error, no ssl, sm59 failed, rfc destination fails, https, tls , KBA , BC-CST-IC , Internet Communication Manager , BC-SEC-SSL , Secure Sockets Layer Protocol , Problem