title: TNS-12514: TNS:listener does not currently know of service requested in connect descriptor
body: <p>I have oracle 11.2.0 installed on server. Everything was fine till monday.
  Now i can't connect to DB by client, SQL Developer, SQL Plus.</p>
  
  <p><strong>lsnrctl status</strong> on server:</p>
  
  <pre><code>C:\Users\User1&gt;lsnrctl status
  
  LSNRCTL for 64-bit Windows: Version 11.2.0.1.0 - Production on 14-JAN-2016 09:21
  :14
  
  Copyright (c) 1991, 2010, Oracle.  All rights reserved.
  
  Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=SERVERNAME.DOMAIN)(PORT=1
  521)))
  TNS-12541: TNS:no listener
   TNS-12560: TNS:protocol adapter error
    TNS-00511: No listener
     64-bit Windows Error: 61: Unknown error
  Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
  STATUS of the LISTENER
  ------------------------
  Alias                     LISTENER
  Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.1.0 - Produ
  ction
  Start Date                13-JAN-2016 21:36:13
  Uptime                    0 days 11 hr. 48 min. 19 sec
  Trace Level               off
  Security                  ON: Local OS Authentication
  SNMP                      OFF
  Listener Parameter File   C:\app\Administrator\product\11.2.0\dbhome_2\network\a
  dmin\listener.ora
  Listener Log File         c:\app\administrator\diag\tnslsnr\SERVERNAME\listener\
  alert\log.xml
  Listening Endpoints Summary...
    (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(SERVERNAME.DOMAIN)(PORT=1521)))
    (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
  Services Summary...
  Service "CLRExtProc" has 1 instance(s).
    Instance "CLRExtProc", status UNKNOWN, has 2 handler(s) for this service...
  Service "LAND3XDB" has 1 instance(s).
    Instance "land3", status READY, has 1 handler(s) for this service...
  Service "TEST3XDB" has 1 instance(s).
    Instance "test3", status READY, has 1 handler(s) for this service...
  Service "TESTT10XDB" has 1 instance(s).
    Instance "testt10", status READY, has 1 handler(s) for this service...
  Service "TESTXDB" has 1 instance(s).
    Instance "test", status READY, has 1 handler(s) for this service...
  Service "TEST_T10" has 1 instance(s).
    Instance "testt10", status READY, has 1 handler(s) for this service...
  Service "land3" has 1 instance(s).
    Instance "land3", status READY, has 1 handler(s) for this service...
  Service "test" has 1 instance(s).
    Instance "test", status READY, has 1 handler(s) for this service...
  Service "test3" has 1 instance(s).
    Instance "test3", status READY, has 1 handler(s) for this service...
  The command completed successfully
  </code></pre>
  
  <p><strong>tnsping DB:</strong></p>
  
  <pre><code>C:\Users\USER1&gt;tnsping TEST3
  
  TNS Ping Utility for 64-bit Windows: Version 11.2.0.1.0 - Production on 14-JAN-2
  016 09:25:55
  
  Copyright (c) 1997, 2010, Oracle.  All rights reserved.
  
  Used parameter files:
  C:\app\Administrator\product\11.2.0\dbhome_2\network\admin\sqlnet.ora
  
  
  Used TNSNAMES adapter to resolve the alias
  Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
  (HOST = SERVERNAME.DOMAIN)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (S
  ERVICE_NAME = TEST3)))
  TNS-12541: TNS:no listener
  </code></pre>
  
  <p><strong>LISTENER.ORA</strong></p>
  
  <pre><code>SID_LIST_LISTENER =
    (SID_LIST =
      (SID_DESC =
        (SID_NAME = CLRExtProc)
        (ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_2)
        (PROGRAM = extproc)
        (ENVS = "EXTPROC_DLLS=ONLY:C:\app\Administrator\product\11.2.0\dbhome_2\bin\oraclr11.dll")
      )
      (SID_DESC =
        (SID_NAME = CLRExtProc)
        (ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_2)
        (PROGRAM = extproc)
        (ENVS = "EXTPROC_DLLS=ONLY:C:\app\Administrator\product\11.2.0\dbhome_2\bin\oraclr11.dll")
      )
    )
  
  LISTENER =
    (DESCRIPTION_LIST =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = SERVERNAME.DOMAIN)(PORT = 1521))
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      )
    )
  
  ADR_BASE_LISTENER = C:\app\Administrator
  </code></pre>
  
  <p><strong>SQLNET.ORA</strong></p>
  
  <pre><code>SQLNET.AUTHENTICATION_SERVICES = (NONE)
  </code></pre>
  
  <p><strong>tnsnames.ora</strong></p>
  
  <pre><code>TEST3 =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = SERVERNAME.DOMAIN)(PORT = 1521))
      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = TEST3)
      )
    )
  
  TEST_T10 =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = SERVERNAME.DOMAIN)(PORT = 1521))
      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = TEST_T10)
      )
    )
  
  TEST3_X64 =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = SERVERNAME.DOMAIN)(PORT = 1521))
      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = TEST3)
      )
    )
  
  ORACLR_CONNECTION_DATA =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      )
      (CONNECT_DATA =
        (SID = CLRExtProc)
        (PRESENTATION = RO)
      )
    )
  
  LAND3 =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = SERVERNAME)(PORT = 1521))
      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = LAND3)
      )
    )
  
  TEST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = SERVERNAME.DOMAIN)(PORT = 1521))
      )
      (CONNECT_DATA =
        (SERVER = DEDICATED)
        (SERVICE_NAME = TEST)
      )
    )
  </code></pre>
  
  <p>In logs C:\app\Administrator\diag\tnslsnr\SERVERNAME\listener\alert:</p>
  
  <pre><code>&lt;msg time='2016-01-14T09:21:53.324+03:00' org_id='oracle' comp_id='tnslsnr'
   type='UNKNOWN' level='16' host_id='SERVERNAME'
   host_addr='::1'&gt;
   &lt;txt&gt;14-JAN-2016 09:21:53 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=SERVERNAME$))(SERVICE_NAME=TESTLD.DOMAIN)) * (ADDRESS=(PROTOCOL=tcp)(HOST=172.29.17.141)(PORT=62670)) * establish * TESTLD.DOMAIN * 12571
   &lt;/txt&gt;
  &lt;/msg&gt;
  &lt;msg time='2016-01-14T09:22:03.324+03:00' org_id='oracle' comp_id='tnslsnr'
   type='UNKNOWN' level='16' host_id='SERVERNAME'
   host_addr='::1'&gt;
   &lt;txt&gt;TNS-12571: TNS:packet writer failure
   TNS-12560: TNS:protocol adapter error
    TNS-00530: Protocol adapter error
     64-bit Windows Error: 54: Unknown error
      TNS-12514: TNS:listener does not currently know of service requested in connect descriptor
   &lt;/txt&gt;
  &lt;/msg&gt;
  </code></pre>
  
  <p>All services are srarted.
  i don't have any ides what's wrong with this.</p>