Symptoms: Your voice software reports that your license has expired, but the expiration date listed indicates that the license is valid.
Resolution: An error about license expiration is almost always related to your system clock. These are the most likely conditions:
Your license has actually expired.
Your system clock is not set properly.
The voice software detects inappropriate system clock situations (for example, if the current date is before the date when the license was activated) and assumes the license has expired in those cases.
In order to fix this issue, set your system clock to the correct time and restart your voice software.