Enterprise Manager Generic (MOSC)

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Oracle Enterprise Manager unable to connect

edited Jul 28, 2018 4:10AM in Enterprise Manager Generic (MOSC) 3 commentsAnswered ✓

Hi,

Recently I have a problem of opening the Enterprise manager by the URL https://<oracle server>:1158/em, the browser shown the error message "cannot display the webpage" but I can telnet the port 1158 of the server.
When I check the emoms.log, it shown some error message as below:
2013-01-17 10:19:12,291 [PAFStartupThread] ERROR conn.ConnectionService verifyRepositoryEx.891 - Invalid Connection Pool. ERROR = Listener r
efused the connection with the following error:
ORA-12528, TNS:listener: all appropriate instances are blocking new connections
The Connection descriptor used by the client was:
(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=<host name>)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl)))

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