2610574 - HADR setup error - The specified hostname cannot be identified on the network - SRS

• Installing HADR system successfully on the Primary
• Installing on the Companion with "setuphadr <path_to_response_file>", got error:
  

  2018-02-16 09:59:17 (SQL command) sap_set_host Site2, '<comp_ase_hostname>', 4901, '<comp_replication_server_host>', 7905, 4909
  TASKNAMETYPE VALUE
  -------- ----------------------------- -------------------------------------------------------------------------------------------------------------------------------------------
  Set HostStart Time Tue Feb 16 09:59:17 SGT 2018
  Set HostElapsed Time 00:00:00
  SetHost Task Name Set Host
  SetHost Task State Error
  SetHost Short Description Define a logical host with hostname and port for both ASE and Replication Server.
  SetHost Long Description Validating user specified arguments.
  SetHost Failing Command sap_set_host Site2, <comp_ase_hostname>, 4901, <comp_replication_server_host>, 7905, 4909,
  SetHost Failing Command Error MessageThe specified hostname cannot be identified on the network.
  SetHost Corrective Action sap_set_host logical_hostname, ase_hostname, ase_port_number, [report] [, replication_server_host, replication_server_port, DR Agent port ]
  SetHost Task Start Tue Feb 16 09:59:17 SGT 2018
  SetHost Task End Tue Feb 16 09:59:17 SGT 2018
  SetHost Hostname <Primary_host_name>
  2018-02-16 09:59:17 (SQL command) sap_pre_setup_check dr, Site1, Site2
  TASKNAMETYPE VALUE
  ------ -------- ------------------------------------------
  <DR> AgentThe logical hostname 'Site2' is not valid.
  2018-02-16 09:59:17 Error: Setup RMA...Fail

• SAP Replication Server (SRS) 16.0
• SAP Replication Server (SRS) 15.7.1
• SAP Adaptive Server Enterprise (ASE) 16.0 with Always-on Option (HADR)
• SAP Adaptive Server Enterprise (ASE) 16.0 with High Availability Disaster Recovery (HADR) for Business Suite

HADR, SRS, hostname, setuphadr, network, ASE, sybase, Replication, sap_set_host , KBA , hadr , BC-SYB-REP-SAP , Replication with SAP Suite / SAP BW , Problem