Article - CS185940
Error "Not a valid license server system host. Exiting" in the vendor daemon log file for PTC License Server
Modified: 18-Jun-2025
Applies To
- PTC Arbortext Editor 6.1 to 8.1
- Pro/ENGINEER and Creo Elements/Pro Wildfire to Wildfire 5.0
- Creo Parametric 1.0 to 11.0
- Mathcad 14.0 to 15.0
- Mathcad Prime 1.0 to 8.0
- All PTC Flex-enabled products
Description
- Error "Not a valid server hostname, exiting" in log file.
- Error "Not a valid server hostname, exiting" in log file when trying to start the master license service in a triad configuration.
- Error "Not a valid server name _HOSTNAME_".
- Error " Not a valid license server system host. Exiting" in the log file
- Vendor daemon not starting
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