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"Your current Serv-U registration key is not valid for this version most likely because the upgrade protection period has expired" after upgrading to Serv-U 15.1.5

This article explains a resolution for the issue that occurs after upgrading to Serv-U version 15.1.5, when the following error is displayed: Your current Serv-U registration key is not valid for this version most likely because the upgrade protection period has expired.

First published date

5/21/2019 7:30 PM

Last published date

7/1/2025 9:19 PM

Overview

This article provides a resolution for the issue that occurs after upgrading to Serv-U version 15.1.5, when the following error is displayed:

Invalid Registration ID

Your current Serv-U registration key is not valid for this version, most likely because the upgrade protection period has expired.

Product section

Serv-U Managed File Transfer & Serv-U FTP Server

Cause

The license key was not registered during the upgrade. In the previous Serv-U version, the old license may have still worked even if it was expired, but would stop working after an upgrade to 15.1.5.

Resolution

Register the Serv-U MFT license key. (Refer to the following KB article: Register Serv-U and Serv-U Gateway license key.)
Re-run the upgrade. (Refer to the following KB article: Upgrade to the latest version of Serv-U.)

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