I am using Creo Parametric 2.0 M250, it was working fine for months. Does anyone have any other tricks I didn't try below?
After Creo prematurely exit, parametric.exe no longer launches. This happened before and after a reinstallation. I tried these options
Check ipconfig /all
Article on VPN issues: Creo Won't Launch - PTC Community
Disabled this Network Adapter: NCP Secure Client Virtual NDIS6.20 Adapter