Full disclosure, I'm not a database admin, but if anyone is able to help me, it would be you guys.
Our Oracle 11g database server stopped working, I'm not aware of anything that could have caused it, it was out of the blue. When I try to connect via SQL Developer I get either 'connection reset by peer socket write error' or 'Input/Output error: connection reset.
I've tried restarting it, checked whether the Windows Services are running and went through every item in the configuration that I could have found, but nothing helped. It seems that the listener is unable to start (I've tried adding a new listener with identical setting and also got the socket write error)
Since I've done no changes to the configuration, I'm perplexed what the issue could be. Does anyone has any ideas to what could be the cause of this issue? And if not, can some one post a link to something like the SQL Server's "Repair Installation" which I didn't find?
Any help is appreciated.
EDIT: I was asked for the following:
Output for the lsnrctl status:
LSNRCTL for 32-bit Windows: Version 18.104.22.168.0 - Production on 03-JUL-2012 13:30 :53 Copyright (c) 1991, 2010, Oracle. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) TNS-12571: TNS:packet writer failure TNS-12560: TNS:protocol adapter error TNS-00530: Protocol adapter error 32-bit Windows Error: 54: Unknown error
And according to the lsnrctl start, the listener is already running