Is it possible your hostname is not set up? If its not on the hosts file is one cause of this error.
Also check the listener and tnsnames files and ensure that there is no connection problem between the Primary and the Standby.
Use tnsping and try to connect from SQL Plus on each server to the other database (The standby will bark).
make sure you have _DGMGRL in your listener file
I noticed later you have this set :
StandbyFileManagement = 'MANUAL
But its set to AUTO on the other, I would consider setting them both to AUTO.
Also your DbFileNameConvert and LogFileNameConvert parameters are set on one but not set on the other, Based on this
I would strongly consider comparing the INIT's.
I have had great luck creating my standby from my primary INIT and only changing these parameters on the standby :
Edited by: mseberg on Jun 16, 2011 5:34 AM
I think the issue is that from the standby you cannot connect to the primary. Please logon to the standby server and try and connect to the primary via sql*net. Likely you will get an error, which is why you are seeing this in DG broker.
Can you try following senario and pste here results:
1. Add tnsnames.ora QA112PRG, QA112STB on both server (primary and standby).
2. If you are writing QA112PRG, QA112STB desriptions with hostname you can add servernames and ips to */etc/hosts* file.
3. Try on both server : tnsping QA112PRG; tnsping QA112STB
4. Set StandbyFileManagement parameter set 'AUTO' , this help datafile management automatically .
5. Watch my video : http://www.mahir-quluzade.com/2012/01/overview-data-guard-configuration.html
Mahir M. Quluzade.