AIMMS Knowledge Base Article – KB000011
Using the AIMMS 3.4 (and higher) network license server to run AIMMS 3.3 and vice versa
The AIMMS 3.4 (and higher) network license server can be used to run AIMMS 3.3 and vice versa. From version 3.3 to version 3.4, the default port number used by the network license server has changed.
When you startup AIMMS, the following error message appears:
AIMMS Initialization Error:
Logging on to AIMMS License Server failed:
Could not establish connection
From AIMMS 3.3 to AIMMS 3.4 the default port number used by the network license server has changed from 5000 to 3400. You may have to override the default port number to enable AIMMS to find the license server. Also, if the name of the license server is not specified correctly, you will get the above error
When you run AIMMS 3.4 or earlier using a license server, you have to specify the license server name (ipaddress) and port in the aimmsnet.cfg file in the config folder of AIMMS or in the command line. You can do this in the following way (note the difference in semicolon and blank).
|Run AIMMS version||With license server version||Aimmsnet.cfg|
|3.3 and earlier||3.4 and higher
|3.4||3.3 and earlier
|Run AIMMS version||With license server version||Command line|
|3.3 and earlier||3.4 and higher||“-S <ipaddress>
|3.4||3.3 and earlier||“-S <ipaddress>
In the initial AIMMS 3.4 release the use of the command line option “-S” did not work properly, so you should upgrade to a new AIMMS 3.4 version or use the aimmsnet.cfg file.
Starting from AIMMS 3.5 the aimmsnet.cfg file is not used anymore. All licenses, including network licenses, are now installed using the License Configuration dialog box. In this dialog box you can override the default port number used to connect to the license server (port 5000 for AIMMS license server 3.3 and earlier, port 3400 for AIMMS license server 3.4 and higher).
When you run AIMMS 3.3 with the AIMMS 3.3 license server, or when you run AIMMS 3.4 (or higher) with the AIMMS 3.4 (or higher) license server and you haven’t changed the port number for the license server, you only have to specify the license server name (ipaddress).
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