3617980 - Enqueue Replication Server fails to conncet to the Enqueue Server with "ENC_ERR_PROTO"

The trace file of the Enqueue Replication Server (ERS) shows that it failed to connect to Standalone Enqueue Server (ENSA):

*** from "dev_enrepsrv":

(...)

[Thr ...] [date and time]
[Thr ...] ***LOG Q0I=> NiIRead: P=[IP address and port of ENSA]; L=[IP address and port of ERS]: recv (104: Connection reset by peer) [/bas/754_REL/src/base/ni/nixxi.cpp 5468]
[Thr ...] *** ERROR => NiIRead: SiRecv failed for hdl 3/sock 10
    (SI_ECONN_BROKEN/104; I4; ST; P=[IP address and port of ENSA]; L=[IP address and port of ERS]) [nixxi.cpp    5468]
[Thr ...] *** ERROR => RepServer: main: no connection to Enqueue Server (rc=-3; ENC_ERR_PROTO) => try again in xx ms (see SAP note 1943531) [enrepserv.cp 832]

(...)

The "dev_enqrepl" trace file on the ENSA "work" folder shows SSL related errors:

(...)

[Thr ...] [date and time]
[Thr ...] *** WARNING =>  Peer is no SSL/TLS Client ["...V...#.......V" 00 00 00 56 ab cd e1 23 00 00 00 00 00 00 00 56]
[Thr ...] *** ERROR => NiISSLStartOnServerConn: SapSSLSessionStartNB failed (-25, SSSLRC_NO_SSL_REQUEST) [nixxi.cpp    11095]
[Thr ...] *** ERROR => ReplicationThread::Loop(): failed to initialize SSL connection on handle 65 (rc=-36 => NIESSL_NO_SSL3_REQUEST) [eniothread.c 2756]

(...)

• SAP NetWeaver based product
• ABAP Platform based product

ENC_ERR_PROTO,  Peer is no SSL/TLS Client, NIESSL_NO_SSL3_REQUEST , KBA , BC-CST-EQ , Enqueue , BC-CST , Client/Server Technology , Problem