1949712 - FPN register error

After register FPN network in version 7.3, when testing "all connections", there is following error:

Could not establish a connection between your portal and the remote producer portal. Refer to trace files for details and check if there is a network problem with http/HTTPS communications.

See following screenshot:

• SAP NetWeaver 7.3
• SAP enhancement package 1 for SAP NetWeaver 7.3

FPN, pcd_service, P4, protocol, Register, role, action, Remote_Producer_Read_Access,Remote_Producer_Write_Access , KBA , EP-PIN-FPN , Federated Portal Network , BC-JAS-SEC , Security, User Management , Problem