Article - CS345349
FLEXnet Licensing error: -96, 7. System Error: 11001"Winsock: Host not found" in PTC Modeler
Modified: 09-Sep-2025
Applies To
- PTC Modeler 9.0 to 10.2
Description
- Getting below error when starting PTC Modeler:
FLEXnet Licensing error: -96, 7. System Error: 11001"Winsock: Host not found (HOST_NOT_FOUND) - When starting Modeler getting error message:
License server machine is down or not responding.
See the system administrator about starting the license server system,
or make sure you're referring the right host (see LM_LICENSE_FILE).
Feature: ARTISANRTS
Hostname: 00-12-34-56-78-90
...
FLEXnet Licensing error: -96, 7. System Error: 11001"Winsock: Host not found (HOST_NOT_FOUND)"
See the system administrator about starting the license server system,
or make sure you're referring the right host (see LM_LICENSE_FILE).
Feature: ARTISANRTS
Hostname: 00-12-34-56-78-90
...
FLEXnet Licensing error: -96, 7. System Error: 11001"Winsock: Host not found (HOST_NOT_FOUND)"
This is a printer-friendly version of Article 345349 and may be out of date. For the latest version click CS345349