VPN PPTP work on the Phone
-- BUT --
If I enable Hotspot of S9 and i connect my PC to HotSpot of S9, I can't connect to a PPTP VPN.
This is a problem of soft. Maybe Ports are blocked or protocol GRE ? But there is really a problem !
EDIT : With Samsung S7 => It work ! It's really a problem of S9 ...
In August 2018 => G960FXXU2BRGA patch this bug
but today with Android 9, this bug is back ... I cant believe it ...
I have the same problem, It is ridiculous that the problem came out again with Android 9, and 2 refreshment arrived till then and still not solved...
Samsung please send a solution!