Welcome to this FLOW-3D license troubleshooting guide. In this video, we will help you set up the license server and fix some common issues you might encounter. More extensive licensing information can be found in the installation. Html document from the help folder in the installation directory of the product. Following are the components of the licensing system, client, server, and license file. Client. This is the machine where FLOW-3D will run and the machine requesting the license tokens. This can be the same machine running the license server or a different machine in the same local network. Server. The server is the machine running the license server. License file. The license file is read by the server and determines the resources and features the client can run with. To well configure the license file, we need to communicate two pieces of information to the FLOW-science license administrator, the host ID or name of the server machine and MAC address. To find the hostname of the machine, open the command prompt or terminal window and issue the command hostname. The MAC address is a unique identifier of the network card hardware. You can get that information by typing ipconfigall in Windows or ipconfig -e in a Linux command line terminal. We can check the license file configuration by opening it with a text editor. Host ID and MAC address are on the first line. The host name can be edited without breaking the license file encryption. The license file and license server will only work on the server machine matching this. If you need to change the server machine, please fill the form at the given link. During installation and licensing, the default port numbers used are from twenty seven thousand to twenty seven thousand and nine. A specific port number can be used by adding the number at the end of the first line of the license file. License server installation or license file update. The FlexLM license server software is available through any FLOW-3D products. After installation, to set up the license server, open LM tools as administrator. Then go to the config services tab. Make sure the directories are well chosen, especially the one pointing to the license file. To start or restart the license server, go to the StartStopReread tab. Click the buttons in order. Stop, reread, start. After that, even if the UI shows an error message, the server should be running. The log text file produced by FlexLM will show if the license server is running. You can see the log file by clicking on view log button available under the config services tab. Alternatively, you can also check the location for the log file with Browse button. After the license server is running, we need to tell the installed FLOW-3D software where to look for a license. The address of the license server machine can be specified during the FLOW-3D wizard. We can skip the license server installation if the license server is already running on the same machine or on a different machine in the local network. We can then add the desired IP address in the license server window. If FLOW-3D is already installed, we can update the license server address by editing the FLOW-3D desktop icon. To do that, right click on the desktop icon and choose edit with notepad. Update the license server address in the F3D TK NUX license file line as shown. If the server is running on the same machine as FLOW-3D, we should set the license server address to at one two seven point zero point zero point one. This IP points to the local machine. Otherwise, enter port number at address of the license server. Troubleshooting. Now we will see how to solve some of the common issues people encounter with FlexLM. Number one, cannot connect to the license server. To resolve this issue, double check the FLOW-3D installation is pointing at the right server address. Check through the license server log file if the server is running correctly. The example log file is shown on the screen. Check your firewalls and network settings. Ensure port twenty seven thousand or the port specified in your license file is open on both the server and client machines. Try temporarily disabling the firewalls to see if you can check out a license token. If that works, refer to your security software's instructions to allow the port. Corporate networks, routers, or VPNs might block the port, so contact your IT team if needed. Also, test the connectivity by executing ping command in the command prompt to the license server from the client machine where FLOW-3D is installed. If there's no response, troubleshoot the network issue. If the ping succeeds, try restarting the license server. Number two, no valid core instance tokens are available. This error often appears when the software tries to use more cores than your license allows. You can open your license file in a text editor to check the maximum permitted cores. There are solver tokens and core tokens included in the license file. Each HYDER 3D C, which is a core token, works in combination with solver tokens and allows to use one core. The solver tokens HYDER 3D8, HYDER 3D16, and HYDER 3D32 Allow up to eight, sixteen, and thirty two cores respectively to run a simulation. You can limit the number of core licenses that FLOW-3D borrows in the simulation manager user interface. Select local under queues, then click the pencil icon to edit the local queue. Under solver settings, set the value of the number of processors as per the given token from the license file and click finish. This setting will borrow the number of cores allowed by the license file while running the simulation. Number three, license does not contain the required tokens for the GUI. This is how the issue is reflected in the license log file. License tokens are issued not only for core utilization, but it also allows to open the user interface of different FLOW-3D products. This error message may appear when trying to open a FLOW-3D product that is not in the license file. Given are some examples of the GUI tokens from the license file. Please download the desired product as per the license file from products and installations page from the given link. You can reach to sales at flow3d dot com if you would like to acquire a new product. Number four, license file does not match MAC address. This issue occurs when the license was produced for another server machine. Please open the license file with a text editor to verify the hostname and MAC address are the expected ones. If not, you can request a license server change at the given link. Number five, license server system does not support this version of this feature. This issue indicates that your license contains the correct tokens, but they are for a previous product version. This issue often occurs when downloading a new release and attempting to use it with an outdated license server. Please contact licenses at flow3d dot com to obtain your latest license if you have not received it yet or visit the product page to download previous software versions. Occasionally, the license server may throw an error even if the correct version feature is included in the license file. In these situations or when other errors occur, rebooting the license server may resolve the issue. To restart the license server, launch elemtools from the licenses folder present in the installation directory. Go to the start, stop, or read tab. Enable the force server shutdown checkbox and click the buttons in order. Stop, reread, start. For any unresolved issues, please contact our support team at supportflow3d dot com to ensure a faster resolution. Include your license file in the flex LM log file with your You can find the log file from LM tools by clicking on view log button available under the config services tab. Alternatively, you can also check the location for the log file with browse button. We hope this video is helpful to set up the licensing of FLOW-3D products.
