PPP login fails with the following error:
"The attempt to log in failed due to system error #cp1006. Please contact your service provider for support."
Most likely the issue is caused by the matter of fact that PPP login is restricted on the license level.
ResolutionPlease check if your license have PPP allowed:
vzlicview | findstr "vzpp_allowed"
If the output is "vzpp_allowed=0" this means that PPP is not allowed by the license.
Please contact your Sales Representative to find out why VZPP/PPP feature is disabled on your license.