DPA: Agent fails to register with the Application server
Summary: Data Protection Advisor (DPA): Agent fails to register with the Application server
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Symptoms
A local agent on a backup server is failing to register with the DPA Application server
Within the Debug low dpaagent logs the following agent authentication error is seen:
<error> <id>Unauthorized request</id> <message>This request requires HTTP authentication</message> </error> ERR 31077.31077 20190507:095244 agent.config - initAgentConfig(): Failed to register agent with the server. Waiting to retry ... DBG1 31077.31077 20190507:095444 common.localdb.pstor - getPStoreVal(): reading pstore variable agent.registration.credentials DBG1 31077.31077 20190507:095444 common.localdb.pstor - getPStoreVal(): variable agent.registration.credentials does not exist
Cause
Removing or damaging the agent pfile (agent_config.db) located in the agent data folder can cause this issue as the hashed agent password is stored within this database.
Resolution
Reset the agent password for the agent via the command:
dpaagent --set-credentials -P <Password>
See KB 503652 (https://support.emc.com/kb/503652) for further information on setting agent password.
Please contact Dell EMC Technical Support for further details or information.
Article Properties
Article Number: 000168065
Article Type: Solution
Last Modified: 23 Oct 2025
Version: 4
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