A misconfiguration in either serverConnect.conf or clientConnect.conf authorization files.
Verify that the case spelling and syntax of the entries in the files match as documented.
Example of correct matching entries:
serverConnect.conf *:admin:changeme:AllclientConnect.conf *:*:admin:changeme
Example of bad entries:
serverConnect.conf *:admin:changeme:AllclientConnect.conf *:*:admin:test <--- Password mismatchserverConnect.conf *:admin:changeme:AllclientConnect.conf *:*:admin:changeme:All <--- The ":All" is not required in this lineserverConnect.conf *:admin:changeme:ALL <--- Only "A" should be capitalizedclientConnect.conf *:*:admin:changemeserverConnect.conf *::admin:changeme:All <--- Syntax doesn't require double colonsclientConnect.conf *:*:admin:changeme