Hi Manoj,
Agent is connecting to MOM and not directly to Collector?
Is the agent <-> EM/MOM firewall open for EM port 5001?
Is a telnet command to EM/MOM host/port 5001 successful ? i.e. telnet 144.229.218.125 5001
Check agent logs for "Enterprise Manager" messages and EM log for the agent name (which you can get from the agent log).
Putting agent & EM logs into DEBUG mode may help i.e.
IntroscopeAgent.profile: log4j.logger.IntroscopeAgent=INFO, logfile -> log4j.logger.IntroscopeAgent=DEBUG, logfile
IntroscopeEnterpriseManager.properties:
log4j.logger.Manager=INFO,console,logfile -> log4j.logger.Manager=DEBUG,console,logfile
Hope that helps
Regards,
Lynn