<Agent type String> agent on host "<host name>" is not authorized to report to application "<application name>". Reason: Missing access key.

or

Agent license request denied. Agent type: <agent type string>; Node: <node name>; Tier: <Tier name>; Application: <application name>; Host: <hostId>; Reason: Missing access key.

Access key is missing from the agent request. For example, if the Controller returns a 401 error during authentication, the agent drops the authorization header and causes this error.

Agent license request denied. Agent type: <agent type string>; Node: <node name>; Tier: <Tier name>; Application: <application name>; Host : <hostId>; Reason: Invalid access key.

or

<Agent type String> agent on host "<host name>" is not authorized to report to application "<application name>". Reason: Invalid access key.

The license rule that was retrieved for a specific access key provided by the agent, is incorrect. This error may also occur when there is a misconfiguration. For example, the access key was updated directly in database but the caches did not include that update, then an access key mismatch will occur.

No licenses are available during agent registration.

<Agent type String> agent on host "<host name>" is not authorized to report to application "<application name>". The host or application is not included in the scope of license rule "<license rule name>".

or

<Agent type String> agent on host "<host name>" is not authorized to this Controller.The host or application is not included in the server scope of license rule "<license rule name>".