Ping and rpcinfo test is ok from server and client

Any comment will be appreciated
     
     Scheduled informix backup error message

            11 25 01:37:30 backup: --- Unsuccessful Save Sets ---
            11 25 01:37:30 backup: * tta01:INFORMIX:/ttasun Connection refused

            Filesystem scheduled backp error message

            11 25 01:07:04 backup: --- Unsuccessful Save Sets ---
            11 25 01:07:04 backup: * tta01:/ 1 retry attempted
            11 25 01:07:04 backup: * tta01:/ Connection refused
            11 25 01:07:04 backup: * tta01:/data 1 retry attempted
            11 25 01:07:04 backup: * tta01:/data Connection refused
            11 25 01:07:04 backup: * tta01:/user 1 retry attempted
            11 25 01:07:04 backup: * tta01:/user Connection refused

             client --> server rpcinfo test
            [ttasun:/]rpcinfo -p backup 
               program vers proto   port  service
                100000    2   tcp   7938  rpcbind
                100000    2   udp   7938  rpcbind
                390113    1   tcp   7937
                390103    2   tcp   9351
                390109    2   tcp   9351
                390110    1   tcp   9351
                390103    2   udp   9352
                390109    2   udp   9352
                390110    1   udp   9352
                390107    5   tcp   9485
                390107    6   tcp   9485
                390105    5   tcp   9491
                390105    6   tcp   9491
                390104  105   tcp   9606
                390104  205   tcp   9612
                390104  305   tcp   9619
                390104  405   tcp   8579
                390104  505   tcp   9313
                390104  605   tcp   8890

            server --> client rpcinfo test
            C:\>rpcinfo -p tta01
               program vers proto   port
                100000    2   tcp   7938
                100000    2   udp   7938
                390113    1   tcp   7937
               program vers proto   port
                100000    4   tcp    111
                100000    3   tcp    111
                100000    2   tcp    111
                100000    4   udp    111
                100000    3   udp    111
                100000    2   udp    111
                100011    1   udp  32772
                100024    1   udp  32773
                100024    1   tcp  32771
                100021    1   udp   4045
                100021    2   udp   4045
                100021    3   udp   4045
                100021    4   udp   4045
                100021    1   tcp   4045
                100021    2   tcp   4045
                100021    3   tcp   4045
                100021    4   tcp   4045
                390113    1   tcp   7937
                100005    1   udp  32776
                100005    2   udp  32776
                100005    3   udp  32776
                100005    1   tcp  32776
                100005    2   tcp  32776
                100005    3   tcp  32776
                100003    2   udp   2049
                100003    3   udp   2049
                100227    2   udp   2049
                100227    3   udp   2049
                100003    2   tcp   2049
                100003    3   tcp   2049
                100227    2   tcp   2049
                100227    3   tcp   2049
                300598    1   udp  32779
                300598    1   tcp  32781
             805306368    1   udp  32779
             805306368    1   tcp  32781