oracle - ora:12505:TNS: listener does not currently know of SID given in connect descriptor (DBD ERROR: OCIServerAttach) -

agent connection instance status
failed details
ora-12505:

tns:listener not know of sid given in connect descriptor (dbd error: ociserverattach)

listener file

listener.ora network configuration file:

e:\app\administrator\product\11.2.0\dbhome_1\network\admin\listener.ora

generated oracle configuration tools.  listener =   (description_list =      (description =        (address = (protocol = ipc)(key = extproc1521))        (address = (protocol = tcp)(host = 169.254.52.209)(port = 1521))     )   )  adr_base_listener = e:\app\administrator 

tnsnames.ora file

tnsnames.ora network configuration file:

e:\app\administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora

# generated oracle configuration tools.  edss =    (description =      (address = (protocol = tcp)(host = 169.254.52.209)(port = 1521))      (connect_data =        (server = dedicated)        (service_name = edss)     )   ) 

the listener status

c:\users\administrator>lsnrctl status  lsnrctl 64-bit windows: version 11.2.0.1.0 - production on 17-mar-2014 09:06:11  copyright (c) 1991, 2010, oracle.  rights reserved.  connecting (description=(address=(protocol=ipc)(key=extproc1521)))  status of listener ------------------------ alias                    listener  version                  tnslsnr 64-bit windows: version 11.2.0.1.0 - production  start date               16-mar-2014 16:50:30  uptime                   0 days 16 hr. 15 min. 45 sec  trace level              off  security                 on: local os authentication  snmp                     off  listener parameter file   e:\app\administrator\product\11.2.0\dbhome_1\network\admin\listener.ora  listener log file         e:\app\administrator\diag\tnslsnr\server\listener\alert\log.xml  listening endpoints summary...  (description=(address=(protocol=ipc)(pipename=\\.\pipe\extproc1521ipc)))  (description=(address=(protocol=tcp)(host=169.254.52.209)(port=1521)))  listener supports no services  command completed  "agent connection instance status failed. not find out issue" 

there multiple reasons issue:

recently faced similar problem oracle 11g on windows 7 machine. found in services.msc, oracleoradb11g_home1clragent not started , startup type set manual.

i changed startup type automatic , started oracleoradb11g_home1clragent manually, after able connect properly.

so basic reason oraclragnt isn't running.

for other reasons can check this link.