Why are my licenses showing as 0/0 available?

Why are my licenses showing as 0/0 available?

For Houdini versions 20.0.653 and older.

The SERVER code has changed on the machine. This will invalidate the SERVER license keystring.

The SERVER keystring validates the machine to run Houdini licenses.

To install a new valid SERVER key for your computer, please follow reinstall the new SERVER key.

If you are on Windows and the SERVER code keeps changing after rebooting please see here.

Houdini license server builds 20.0.688 and newer should not experience this issue.