From Houdini 18.5
Why do I see the message http://127.0.0.1:1714: No server found running?

You may see this message in the console:

License Manager - http://127.0.0.1:1714: No server found running. Please start the server before retrying.

This is not an error message. It is informing you that hserver client program is not running on the computer.

If the machine is acting as only the license server, it is safe to ignore this message. The main daemon needed in the running state is sesinetd.

The hserver client proxy program is automatically started when a Houdini product is launched on a client machine.

For more information about hserver, please refer to the online documentation.