All dongle/hardware lock (HWL) based versions of PLAXIS 2D/3D are treated as "V8i SELECTseries 10" according to Bentley's Support Policy. This means that Bentley will discontinue support for hardware lock based versions of PLAXIS after December 31, 2021. This includes PLAXIS 2D 2019 and older, and PLAXIS 3D 2018 and older.
To see the benefits of the latest versions and how to get the latest version, please see PLAXIS CONNECT Edition: upgrade from Hardware lock to Flexible licensing
With the release for PLAXIS 2D 2015 and PLAXIS 3D AE some small changes in the communication with the licence dongle (CodeMeter) have been implemented. Together with the new CodeMeter drivers, running a CodeMeter network server can sometimes give issues. due to an IPv4/IPv6 conflict. In these cases the program may respond with this error during the calculation:
One of the following licenses is required: CodeMeter 100444:2000000. Failure reason: CodeMeter License Server not found, Error 101.
Fortunately, there are two solutions for this: on the server machine you will need
Both methods need changes on the server. For Windows based machines, this require changes in the Windows Registry.
For both methods, after making the changes, the CodeMeter services on the server need to be restarted: open the CodeMeter Control Center, and restart the CodeMeter service by first stop it and then start it:
For other trouble shooting for network licence setups, please see the general CodeMeter Network installation page.