typically appears in specialized engineering or automation software that uses licensing managers like Siemens Automation License Manager
Upgrading your application without also upgrading the license manager daemon (e.g., lmgrd , lmadmin ) can cause error 5677. Newer clients often require newer server daemons. Unable To Obtain License 5677 . License Request For
Verify that ports required for licensing (often 29000 or 60001) are open on both the client and server. Licensing systems are highly sensitive to time discrepancies
Licensing systems are highly sensitive to time discrepancies. If your computer’s clock is more than a few minutes (or hours, depending on the license’s tolerance) off from the license server or the license’s validity period, the handshake fails. I will love without certification
So I will operate without a license. I will love without certification. I will grieve without an authenticated signature. I will become without permission slip 5677.