TNS:connection closed

Dear Experts,
My database 10gR2 and OS:Win2003R2 sp2-32 bit. My listener throw the error like below. In between i am getting this errors.
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=PUBLICLAN1)(PORT=1521)))
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Could you give some valuable advice.
Thanks and Regards
Sundar

Thanks,
My hosts file contents inclued IP address and name of the server.
Just now i checked my listener service.I got it like that.
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.198.55)(PORT=1521))
Services Summary...
Service "DHSW.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1469 refused:0 state:ready
LOCAL SERVER
Service "DHSWXDB.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: HIS-SRV1, pid: 4056>
(ADDRESS=(PROTOCOL=tcp)(HOST=his-srv1.dhsa.gov.bh)(PORT=1109))
Service "DHSW_XPT.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1469 refused:0 state:ready
LOCAL SERVER
The command completed successfully
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.198.55)(PORT=1521))
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.198.55)(PORT=1521))
Services Summary...
Service "DHSW.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1484 refused:0 state:ready
LOCAL SERVER
Service "DHSWXDB.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: HIS-SRV1, pid: 4056>
(ADDRESS=(PROTOCOL=tcp)(HOST=his-srv1.dhsa.gov.bh)(PORT=1109))
Service "DHSW_XPT.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1484 refused:0 state:ready
LOCAL SERVER
The command completed successfully
Regards
Sundar

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    (5888) [11-APR-2015 09:36:28:365] nsnainit: inf->nsinfflg[0]: 0x41 inf->nsinfflg[1]: 0x41
    (5888) [11-APR-2015 09:36:28:365] nsnainit: "or" info flags: 0x41 Translations follow:
      native service(s) is (are) wanted
    (5888) [11-APR-2015 09:36:28:365] nsnainit: "or" info flags: 0x41 Translations follow:
      native service(s) is (are) wanted
    "and" info flags: 0x41 Translations follow:
      native service(s) is (are) wanted
    (5888) [11-APR-2015 09:36:28:365] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:365] nsopen: global context check-in (to slot 0) complete
    (5888) [11-APR-2015 09:36:28:365] nsopen: lcl[0]=0xf4ffefff, lcl[1]=0x102000, gbl[0]=0xfabf, gbl[1]=0x1, tdu=2097152, sdu=8192
    (5888) [11-APR-2015 09:36:28:365] nsfull_opn: cid=0, opcode=65, *bl=0, *what=0, uflgs=0x0, cflgs=0x0
    (5888) [11-APR-2015 09:36:28:365] nsfull_opn: nsctx: state=7, flg=0x4001, mvd=0
    (5888) [11-APR-2015 09:36:28:365] nsmal: 168 bytes at 0x214d1a0
    (5888) [11-APR-2015 09:36:28:365] nsmal: 168 bytes at 0x214dbf0
    (5888) [11-APR-2015 09:36:28:365] nsmfr: 239 bytes at 0x20e53a0
    (5888) [11-APR-2015 09:36:28:365] nsdo: cid=0, opcode=67, *bl=238, *what=8, uflgs=0x0, cflgs=0x3
    (5888) [11-APR-2015 09:36:28:365] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:365] nsdo: rank=64, nsctxrnk=0
    (5888) [11-APR-2015 09:36:28:365] nsdo: nsctx: state=14, flg=0x4005, mvd=0
    (5888) [11-APR-2015 09:36:28:365] nsdo: gtn=10, gtc=10, ptn=10, ptc=8111
    (5888) [11-APR-2015 09:36:28:365] nscon: doing connect handshake...
    (5888) [11-APR-2015 09:36:28:365] nscon: sending NSPTCN packet
    (5888) [11-APR-2015 09:36:28:365] nspsend: plen=70, type=1
    (5888) [11-APR-2015 09:36:28:365] ntzwrite: entry
    (5888) [11-APR-2015 09:36:28:365] nzos_Write: entry
    (5888) [11-APR-2015 09:36:28:365] nttwr: entry
    (5888) [11-APR-2015 09:36:28:365] nttwr: socket 560 had bytes written=99
    (5888) [11-APR-2015 09:36:28:365] nttwr: exit
    (5888) [11-APR-2015 09:36:28:365] nzos_Write: exit
    (5888) [11-APR-2015 09:36:28:365] ntzwrite: exit
    (5888) [11-APR-2015 09:36:28:365] nspsend: 70 bytes to transport
    (5888) [11-APR-2015 09:36:28:365] nscon: sending 238 bytes connect data
    (5888) [11-APR-2015 09:36:28:365] nsdo: cid=0, opcode=67, *bl=238, *what=1, uflgs=0x4002, cflgs=0x0
    (5888) [11-APR-2015 09:36:28:365] nsdo: nsctx: state=2, flg=0x4005, mvd=0
    (5888) [11-APR-2015 09:36:28:365] nsdo: gtn=10, gtc=10, ptn=10, ptc=431
    (5888) [11-APR-2015 09:36:28:365] nsdo: 238 bytes to NS buffer
    (5888) [11-APR-2015 09:36:28:365] nsdofls: DATA flags: 0x0
    (5888) [11-APR-2015 09:36:28:365] nsdofls: sending NSPTDA packet
    (5888) [11-APR-2015 09:36:28:365] nspsend: plen=248, type=6
    (5888) [11-APR-2015 09:36:28:365] ntzwrite: entry
    (5888) [11-APR-2015 09:36:28:365] nzos_Write: entry
    (5888) [11-APR-2015 09:36:28:365] nttwr: entry
    (5888) [11-APR-2015 09:36:28:365] nttwr: socket 560 had bytes written=277
    (5888) [11-APR-2015 09:36:28:365] nttwr: exit
    (5888) [11-APR-2015 09:36:28:365] nzos_Write: exit
    (5888) [11-APR-2015 09:36:28:365] ntzwrite: exit
    (5888) [11-APR-2015 09:36:28:365] nspsend: 248 bytes to transport
    (5888) [11-APR-2015 09:36:28:365] nsdoacts: flushing transport
    (5888) [11-APR-2015 09:36:28:365] ntzcontrol: entry
    (5888) [11-APR-2015 09:36:28:365] ntzcontrol: Command = 4
    (5888) [11-APR-2015 09:36:28:365] ntzcontrol: unknown command 4 - calling underlying protocol adapter
    (5888) [11-APR-2015 09:36:28:365] nttctl: entry
    (5888) [11-APR-2015 09:36:28:365] ntzcontrol: operation is unsupported
    (5888) [11-APR-2015 09:36:28:365] ntzcontrol: exit
    (5888) [11-APR-2015 09:36:28:365] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:365] nsdo: nsctxrnk=0
    (5888) [11-APR-2015 09:36:28:365] nsdo: cid=0, opcode=68, *bl=2048, *what=9, uflgs=0x0, cflgs=0x3
    (5888) [11-APR-2015 09:36:28:365] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:365] nsdo: rank=64, nsctxrnk=0
    (5888) [11-APR-2015 09:36:28:365] nsdo: nsctx: state=2, flg=0x4005, mvd=0
    (5888) [11-APR-2015 09:36:28:365] nsdo: gtn=10, gtc=10, ptn=10, ptc=8111
    (5888) [11-APR-2015 09:36:28:380] nscon: recving a packet
    (5888) [11-APR-2015 09:36:28:380] nsprecv: reading from transport...
    (5888) [11-APR-2015 09:36:28:380] ntzread: entry
    (5888) [11-APR-2015 09:36:28:380] ntznzosread: entry
    (5888) [11-APR-2015 09:36:28:380] nzos_Read: entry
    (5888) [11-APR-2015 09:36:28:380] nttrd: entry
    (5888) [11-APR-2015 09:36:28:380] ntt2err: entry
    (5888) [11-APR-2015 09:36:28:380] ntt2err: exit
    (5888) [11-APR-2015 09:36:28:380] nttrd: socket 560 had bytes read=0
    (5888) [11-APR-2015 09:36:28:380] nttrd: exit
    (5888) [11-APR-2015 09:36:28:380] nzos_Read: exit
    (5888) [11-APR-2015 09:36:28:380] ntznzosread: encountered "wouldblock" error
    (5888) [11-APR-2015 09:36:28:380] ntctst: size of NTTEST list is 1 - not calling poll
    (5888) [11-APR-2015 09:36:28:396] nzos_Read: entry
    (5888) [11-APR-2015 09:36:28:396] nttrd: entry
    (5888) [11-APR-2015 09:36:28:396] nttrd: exit
    (5888) [11-APR-2015 09:36:28:396] ntt2err: entry
    (5888) [11-APR-2015 09:36:28:396] ntt2err: Read unexpected EOF ERROR on 560
    (5888) [11-APR-2015 09:36:28:396] ntt2err: exit
    (5888) [11-APR-2015 09:36:28:396] nzos_Read: exit
    (5888) [11-APR-2015 09:36:28:396] ntznzosread: SSL connection closed gracefully.
    (5888) [11-APR-2015 09:36:28:396] ntznzosread: SSL connection terminated normally.
    (5888) [11-APR-2015 09:36:28:396] ntznzosread: returning NZ error 28865 in result structure
    (5888) [11-APR-2015 09:36:28:396] ntznzosread: exit
    (5888) [11-APR-2015 09:36:28:396] nserror: nsres: id=0, op=68, ns=12537, ns2=12560; nt[0]=507, nt[1]=0, nt[2]=0; ora[0]=28865, ora[1]=0, ora[2]=0
    (5888) [11-APR-2015 09:36:28:396] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:396] nsdo: nsctxrnk=0
    (5888) [11-APR-2015 09:36:28:396] nscall: unexpected response
    (5888) [11-APR-2015 09:36:28:396] nsvntx_dei: entry
    (5888) [11-APR-2015 09:36:28:396] nsvntx_dei: exit
    (5888) [11-APR-2015 09:36:28:396] nstimarmed: no timer allocated
    (5888) [11-APR-2015 09:36:28:396] ntzcontrol: entry
    (5888) [11-APR-2015 09:36:28:396] ntzcontrol: Command = 14
    (5888) [11-APR-2015 09:36:28:396] ntzcontrol: exit
    (5888) [11-APR-2015 09:36:28:396] ntzcontrol: entry
    (5888) [11-APR-2015 09:36:28:396] ntzcontrol: Command = 15
    (5888) [11-APR-2015 09:36:28:396] ntzcontrol: exit
    (5888) [11-APR-2015 09:36:28:396] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:396] nsfull_cls: cid=0, opcode=65, *bl=0, *what=0, uflgs=0x0, cflgs=0x440
    (5888) [11-APR-2015 09:36:28:396] nsfull_cls: nsctx: state=1, flg=0x4001, mvd=0
    (5888) [11-APR-2015 09:36:28:396] nsclose: closing transport
    (5888) [11-APR-2015 09:36:28:396] ntzdisconnect: entry
    (5888) [11-APR-2015 09:36:28:396] ntzFreeNTZData: entry
    (5888) [11-APR-2015 09:36:28:396] nzos_DestroyCtx: entry
    (5888) [11-APR-2015 09:36:28:396] nzos_DestroyCtx: exit
    (5888) [11-APR-2015 09:36:28:396] ntzFreeNTZData: exit
    (5888) [11-APR-2015 09:36:28:396] nttdisc: entry
    (5888) [11-APR-2015 09:36:28:396] nttdisc: Closed socket 560
    (5888) [11-APR-2015 09:36:28:396] nttdisc: exit
    (5888) [11-APR-2015 09:36:28:396] ntzdisconnect: exit
    (5888) [11-APR-2015 09:36:28:396] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:396] nsclose: global context check-out (from slot 0) complete
    (5888) [11-APR-2015 09:36:28:396] nadisc: entry
    (5888) [11-APR-2015 09:36:28:396] nacomtm: entry
    (5888) [11-APR-2015 09:36:28:396] nacompd: entry
    (5888) [11-APR-2015 09:36:28:396] nacompd: exit
    (5888) [11-APR-2015 09:36:28:396] nacompd: entry
    (5888) [11-APR-2015 09:36:28:396] nacompd: exit
    (5888) [11-APR-2015 09:36:28:396] nacomtm: exit
    (5888) [11-APR-2015 09:36:28:396] nas_dis: entry
    (5888) [11-APR-2015 09:36:28:396] nas_dis: exit
    (5888) [11-APR-2015 09:36:28:396] nau_dis: entry
    (5888) [11-APR-2015 09:36:28:396] nau_dis: exit
    (5888) [11-APR-2015 09:36:28:396] naeetrm: entry
    (5888) [11-APR-2015 09:36:28:396] naeetrm: exit
    (5888) [11-APR-2015 09:36:28:396] naectrm: entry
    (5888) [11-APR-2015 09:36:28:396] naectrm: exit
    (5888) [11-APR-2015 09:36:28:396] nagbltrm: entry
    (5888) [11-APR-2015 09:36:28:396] nau_gtm: entry
    (5888) [11-APR-2015 09:36:28:396] nau_gtm: exit
    (5888) [11-APR-2015 09:36:28:396] nagbltrm: exit
    (5888) [11-APR-2015 09:36:28:396] nadisc: exit
    (5888) [11-APR-2015 09:36:28:396] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:396] nsvntx_dei: entry
    (5888) [11-APR-2015 09:36:28:396] nsvntx_dei: exit
    (5888) [11-APR-2015 09:36:28:396] snsbitts_ts: acquired the bit
    (5888) [11-APR-2015 09:36:28:396] nsmfr: 2944 bytes at 0x2152400
    (5888) [11-APR-2015 09:36:28:396] nsmfr: 1880 bytes at 0x2151ca0
    (5888) [11-APR-2015 09:36:28:396] nscall: connecting...
    (5888) [11-APR-2015 09:36:28:396] nladget: entry
    (5888) [11-APR-2015 09:36:28:396] nladget: exit
    (5888) [11-APR-2015 09:36:28:396] nsmfr: 238 bytes at 0x221def0
    (5888) [11-APR-2015 09:36:28:412] nsmfr: 304 bytes at 0x20d8200
    (5888) [11-APR-2015 09:36:28:412] nladtrm: entry
    (5888) [11-APR-2015 09:36:28:412] nladtrm: exit
    (5888) [11-APR-2015 09:36:28:412] nioqper:  error from nscall
    (5888) [11-APR-2015 09:36:28:412] nioqper:    ns main err code: 12537
    (5888) [11-APR-2015 09:36:28:412] nioqper:    ns (2)  err code: 12560
    (5888) [11-APR-2015 09:36:28:412] nioqper:    nt main err code: 507
    (5888) [11-APR-2015 09:36:28:412] nioqper:    nt (2)  err code: 0
    (5888) [11-APR-2015 09:36:28:412] nioqper:    nt OS   err code: 0
    (5888) [11-APR-2015 09:36:28:412] niomapnserror: entry
    (5888) [11-APR-2015 09:36:28:412] niqme: entry
    (5888) [11-APR-2015 09:36:28:412] niqme: reporting ORA-28865 error
    (5888) [11-APR-2015 09:36:28:412] niqme: exit
    (5888) [11-APR-2015 09:36:28:412] niomapnserror: exit
    (5888) [11-APR-2015 09:36:28:412] niotns: Couldn't connect, returning 28865
    (5888) [11-APR-2015 09:36:28:412] niotns: exit
    (5888) [11-APR-2015 09:36:28:412] nsbrfr: nsbfs at 0x214d1a0, data at 0x2225ca0.
    (5888) [11-APR-2015 09:36:28:412] nsbrfr: nsbfs at 0x214dbf0, data at 0x2227d90.
    (5888) [11-APR-2015 09:36:28:412] nsbrfr: nsbfs at 0x214d9e0, data at 0x21531c0.
    (5888) [11-APR-2015 09:36:28:412] nigtrm: Count in the NI global area is now 1
    (5888) [11-APR-2015 09:36:28:412] nigtrm: Count in the NL global area is now 1

    CLIENT SQLNET.ORA
    TRACE_LEVEL_CLIENT = 10
    TRACE_UNIQUE_CLIENT = ON
    TRACE_DIRECTORY_CLIENT = C:\Oracle\app\client\product\12.1.0\client_1\network\trace
    TRACE_FILE_CLIENT = sqlnet_client.trc
    LOG_FILE_CLIENT = sqlnet_client.log
    LOG_DIRECTORY_CLIENT = C:\Oracle\app\client\product\12.1.0\client_1\network\log
    DIAG_ADR_ENABLED = OFF
    TRACE_TIMESTAMP_CLIENT = ON
    SQLNET.AUTHENTICATION_SERVICES = (ALL)
    SQLNET.AUTHENTICATION_REQUIRED = FALSE
    SSL_CLIENT_AUTHENTICATION = FALSE
    WALLET_LOCATION =
      (SOURCE =
        (METHOD = FILE)
        (METHOD_DATA =
          (DIRECTORY = C:\Oracle\app\client\product\12.1.0\client_1\network\wallets)
    ADR_BASE = C:\Oracle\app\client\product\12.1.0\client_1\log
    SERVER SQLNET.ORA
    SQLNET.AUTHENTICATION_SERVICES= (ALL)
    SSL_VERSION = 0
    SSL_CLIENT_AUTHENTICATION = FALSE
    TRACE_UNIQUE_SERVER = ON
    TRACE_DIRECTORY_SERVER = /u01/app/grid/product/12.1.0/12.1.0.2/network/trace
    TRACE_FILE_SERVER = sqlnet_server.trc
    LOG_FILE_SERVER = sqlnet_server.log
    WALLET_LOCATION =
      (SOURCE =
        (METHOD = FILE)
        (METHOD_DATA =
          (DIRECTORY = /u01/app/grid/product/12.1.0/12.1.0.2/owm/wallets/grid)
    LOG_DIRECTORY_SERVER = /u01/app/grid/product/12.1.0/12.1.0.2/network/log
    SQLNET.AUTHENTICATION_REQUIRED = FALSE
    DIAG_ADR_ENABLED = OFF
    TRACE_TIMESTAMP_SERVER = ON

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