Confirm the credentials on the Storage Manager configuration page in Orion.
Login to the Orion server, can you login to Storage Manager via a web browser.
Try uninstalling and reinstalling the module.
Agent on host:
When installing the agent on the host, did you enter the IP or name of the STM server correctly? Check the config.xml on the agent.
Try restarting the agent.
Make sure traps can flow from the agent to the server.
If none of this works, contact support.