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                          ERROR - Not a valid server hostname, exiting

                          Authored by Aaron Schedlin September 22nd, 2024 4190 views 1 likes KB2152469

                          ERROR

                          License Manager will not start after hostname of the server was changed.

                           

                          “NewHostName”: Not a valid server hostname, exiting.
                          Valid license server system hosts are: “OldHostName”
                          Using license file "C:\Program Files\ANSYS Inc\Shared Files\Licensing\license_files\ansyslmd.lic
                          Unable to kill lmgrd.exe. Please kill this manually by opening the Task manager and Killing the lmgrd.exe which are still running".

                          Software & Version

                          License Manager 2023 R2, License Manager 2024R1

                          *This example was taken from this version but is not necessarily limited to this version.

                          Description/Cause

                          The name of the computer hosting the license manager was changed after the license file was issued. The hostname in the license file needs to match the hostname of the license manager in order for all License Manager services to start properly and perform checkouts properly.

                          *The cause(s) we identified in this documented instance may not be the only cause(s) for this error.

                          Solution

                          Option 1 - Change the hostname in your license file to match the computer name

                          1. HOW TO - Change the Hostname of an Ansys License Server
                           
                           

                          Option 2 - Rehost Your License

                          1. Rehost your license so that it is activated/issued with the new hostname.
                            • HOW TO - Change/Rehost a FlexNet License Server
                          2. Reset Your Ansys License File before installing the new license file.
                           
                           

                          Option 3 - Change the hostname of your server/computer

                          Warning

                          Before changing your computer name, verify that no other services will be impacted by this.  Also, all users will need to change the license server they are pointing to at the end of this process. 

                           



                          For Windows Client OS's

                          1. Identify the computer hostname listed in your installed license file.

                            C:\Program Files\ANSYS Inc\Shared Files\licensing\license_files\ansyslmd.lic

                          2. Right Click on the Start Menu > select System > Rename PC. 
                          3. Rename the computer to the hostname found in your installed license file.

                          4. Have all users change the license server they are pointing to this new server name.
                           
                           

                           

                           

                           

                           

                           

                          hosthostnamevalidlmgrd.exe

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