KEPServerEX 6.6 License suddenly failed: "Broken: Anchor" [error=-157]

Hi everyone,

I am looking for some advice or assistance regarding a sudden licensing failure. We purchased a perpetual license for KEPServerEX 6.6 in 2018 through a reseller, INRAY (bundled with their FAS Server software).

The system had been running smoothly without any issues until August 1, 2026, when the following error suddenly began appearing in the event log: Licensing - License for feature Siemens TCP/IP Ethernet cannot be accessed [error=-157] and must be reactivated.

In the License Utility, the status for the Manufacturing Suite product is currently showing as Status - Broken: Anchor. (Note: We have not made any hardware changes, MAC address modifications, or VM migrations recently).

Our reseller, INRAY, has declined to assist us because we do not have an active support contract with them. However, we are not looking for software updates or engineering support—we just need to restore a paid perpetual license that broke unexpectedly on its own.

Has anyone encountered this specific issue before, or does anyone know how to repair a "Broken: Anchor" license without an active support contract? Alternatively, if there is a PTC representative on this forum who could help us reset the Activation ID so we can reactivate it, we would be extremely grateful.

Thank you in advance for any advice!