question

Ryusuke T avatar image
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Ryusuke T asked Ben Wilson commented

FlexSim launch error with VPN connection

A customer is using a network license.

When I tried to obtain a license through a VPN connection, the following image was displayed and FlexSim could not be started.

1660138732700.png

When will this popup window appear?

Do you have any advice?


Thank you in advance.

FlexSim 21.0.10
networklaunch errorvpn
1660138732700.png (1.2 KiB)
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1 Answer

Ben Wilson avatar image
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Ben Wilson answered Ben Wilson commented

I have not seen that popup message before, so I don't know how it relates to licensing, but in general:

  • The lmgrd port needs to be allowed through any firewalls between the client PC and the license server. Our default port number for lmgrd is 26914 if you're following our license server installation instructions.
  • The vendor daemon port also must be allowed through any firewalls. Our default port number is 56914.
  • You can text connectivity between the client PC and the license server by using telnet to test. Be sure to test both ports.

If you can connect across both ports from the client PC to the license server, then this popup may not be related to communication with the license server. In that case, please test:

  • Does double-clicking a model file to open it directly (bypassing the start page) avoid the error? There is a chance that the start page's network activity across the VPN could be causing the error.
  • If a double-clicked model opens in FlexSim just fine, you may want to disable the start page communication. This can be done by unchecking all the options at File > Global Preferences > Dynamic Content.
  • The start page can be disabled altogether, though you then lose the easy-to-access list of recent files and the quick-start buttons for licensing, preferences, etc. If completely disabling the start page is desired this can be done from File > Global Preferences > Environment > Show start page when FlexSim opens.

Let us know what you find out.

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Ryusuke T avatar image Ryusuke T commented ·

@Ben Wilson ,

Thank you for the information.


Since the customer has entered the summer vacation, I would like to check it after the summer vacation.

I will post again when I get the information.

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Ryusuke T avatar image Ryusuke T Ryusuke T commented ·

@Ben Wilson ,

A customer contacted me.

Even if you double-click the model file and start it, the same error will be reproduced.

Do you have any advice?

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Ben Wilson avatar image Ben Wilson ♦♦ Ryusuke T commented ·

@Ryusuke T Here are 3 questions:

Did the client try the telnet test across the license server ports, as described in the first part of my answer above?

Are there any other client PCs that are being successfully licensed using that same license server? If not, it should be tested on another PC to see if the problem is just with the one PC. If it effects multiple PCs, there may be a configuration issue on the license server.

Or the error may not be related to licensing at all. Our article FlexSim installation or startup error - FlexSim Community has multiple suggestions for things to try if FlexSim isn't starting properly.

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