Article - CS119513
How to access Flexnet based PTC products via VPN
Modified: 05-Aug-2026
Applies To
- Creo Parametric 2.0 to 12.4
- Pro/ENGINEER and Creo Elements/Pro Wildfire to Wildfire 5.0
- Mathcad 14.0 to 15.0
- Mathcad Prime 1.0 to 11.0
- PTC Illustrate (Formerly Creo Illustrate) 1.0 to 11.1
- PTC Arbortext Editor 6.0 to 8.3
- Arbortext IsoDraw CADprocess 7.0 to 7.3
- PTC Product View (Formerly Creo View) 1.0 to 8.1
Description
- How to access Flexnet based products via VPN
- Error -96, Cannot connect to license server occurs while launching Flexnet based applications on client machines through VPN
- Error -15, Cannot connect to license server system occurs while launching Flexnet based application on client machine through VPN
- License server status shown as Unreachable on client machine while accessing server through VPN
- Creo running slow when connected over VPN to license server
- Delay between every command or click with the program freezing in between
- Unable to assess Mold Design module after connecting VPN and it works in the office without VPN
- License remains allocated after closing Creo when accessed via VPN
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