CodeMeter network error during calculation (IPv4/v6 conflict)

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

1. to set the bind address for the server (prefered method, but only works for static IP addresses for the CodeMeter server),
2. or to change the IPv4/IPv6 setting from automatic setting to IPv4 only.

Both methods need changes on the server. For Windows based machines, this require changes in the Windows Registry.

1. Set Bind address

• on the server, open the Windows Registry
• go to the key HKEY_LOCAL_MACHINE\SOFTWARE\WIBU-SYSTEMS\CodeMeter\Server\CurrentVersion
• find the parameter BindAddress Image may be NSFW.
  Clik here to view.
• change the value of the key “BindAddress” from “0.0.0.0” to the IP-address the server should use for communicating with the client computers.
• Afterwards the CodeMeter service needs to be restarted so that the change takes effect (see below).
• Please be aware that it only makes sense in case that the server has a static IP address

2. Change communication mode to IPv4 only

• on the server, open the Windows Registry
• go to the key HKEY_LOCAL_MACHINE\SOFTWARE\WIBU-SYSTEMS\CodeMeter\Server\CurrentVersion
• find the parameter ApiCommunicationMode
• change its value to 6 to allow for IPv4 and local use only (no IPv6):  Image may be NSFW.
  Clik here to view.
• Then restart the CodeMeter service on the server (see below)

Finally: Restart CodeMeter

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:

Image may be NSFW.
Clik here to view.

For other trouble shooting for network licence setups, please see the general CodeMeter Network installation page.