When trying to enable Internet Connection Sharing on a VPN connection (windows build in VPN client), it can't be done and returns an error information:
"cannot enable shared access. error: 87 the parameter is incorrect"

This BUG has been brought to Windows 10 for a long time , probably since Version 1607, and still remains unfixed untill now (Version 1709, Build 16299.15)
In early windows 10 version such as 1511, this function works fine.
Here comes the most weird thing. I'm pretty sure about my OS is fine. I've reinstall my windows 10 system and the sharing function is just fine on other network adapters such as ethernet or wi-fi adapter, even
a 3rd party VPN client adapter.
The function just can't work on windows build in vpn client (WAN Miniport adapter) .
I hope Microsoft engineer can fix this bug soon . I have been waiting a long time for this and posted an question before this one