Updating message authorization code
If this is the case, ignore the error and refer to the following error description.If none of the above resolves the problem, the Sentinel Express license server that provides you with your Activation License code may be temporarily unavailable.
This certificate is renewed on an annual basis so the date range always encompasses a year. It should be 20 hexadecimal characters with no spaces.
If the connection is operational, the error may be caused by another connection test performed during activation.
Before attempting to activate your license, a connection test is performed by pinging
If there are licenses, determine if there is one that matches the license you are trying retrieve.
If so, you must remove that feature before a new one can be installed.