License Activation Synchronization failed or Stuck in Pending

Description

This article from InSource shows how to resolve an issue where you get the error “Synchronization failed. Reason: Activation server was not able to process the request correctly” for online activation or your license activation is stuck in pending for offline activation.

• Author: Jamie Jackson
• Published: 09/26/2025
• Applies to: AVEVA License Manager

Details

Check for a potential certificate issue by following these steps on the License Server machine:

1. Navigate to C:\Program Files (x86)\Common Files\ArchestrA\Licensing Framework\License Server
2. Right-click on FlxCore.dll > Properties > Digital Signatures
3. Select the Flexera Software entry and click Details
4. You should see the following
   
5. If it says “This digital signature is OK.”, you can try repairing the software. If a repair doesn't fix the problem, please create a tech support ticket to investigate further.
6. If you see "The certificate in the signature cannot be verified", there is an issue with the certificates on this operating system.
7. From here it is recommended to involve your IT team as there could be broader issue with root certificates
8. Here are the steps to resolve the immediate issue
   1. On a machine with a working license server/manager, go to Start > Run.
   2. Type "certmgr.msc" and press Enter.
   3. Navigate to Trusted Root Certification Authorities > Certificates
   4. Find "VeriSign Class 3 Public Primary Certification Authority - G5" under the Issued To column.
   5. Right-click on it, select All Tasks > Export, and follow the prompts to save the certificate (name it "Verisign").
   6. Copy the exported certificate to the problematic machine.
   7. Right-click the copied Verisign certificate and select Install Certificate.
   8. Choose Local Machine, then Next.
   9. Select "Place all certificates in the following store" and browse to Trusted Root Certification Authorities. Complete the installation
   10. Restart the computer.

Now, the FlxCore.dll file should show "The digital signature is OK."