Before proceeding to the steps below, make sure that the OfficeScan server and Control Manager (TMCM) are on their latest builds.

Directly from OfficeScan:

1. If the Update Information is being used, make sure that there is an Internet connection. The OfficeScan server must connect to the Customer Licensing Portal (CLP) through HTTPS to be able to get the information.
2. If a new Activation Code will be provided, verify the AC's expiration date to make sure that you are using the correct one. Use the CLP to verify (this requires login), or contact your Trend Micro Sales Representative. 

Using TMCM to update the OfficeScan Licenses:

1. If the Deploy License Profile feature is used:
   1. Internet connection needs to be available. The Control Manager server must connect to the CLP through HTTPS to be able to get the information.
   2. Verify if the Activation Code has been extended using the CLP or through your Trend Micro Sales Representative.
2. If a new Activation Code will be deployed, verify the AC's expiration date to make sure that you are using the correct one. Use the CLP or contact your Trend Micro Sales Representative.