Solution for the Error 20037/20038 from Appeon (AEM) for .Net Servers
Posted by Nico Wang on 09 August 2017 02:46 PM


You may encounter the "Error 20037 or 20038: Your license is not activated within the valid period, or your license activation fails for changing the system time, please confirm and then re-apply for the license" as shown below in about 30 days after you applied a new license into your AEM.



1. Download the attachment

2. Unzip the downloaded

3. Run the unzipped appeonkeymodify.exe using Run as administrator.

4. Apply a new license required from Appeon.

5. Restart IIS.

Note: If there's anything stopping you from running the AppeonKeyModify.exe, please exit all your anti-virus software and try again.

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