Hi everyone,
I recently set a PPTP VPN server at my house with a mikrotik router.
When I try to connect to the VPN with my mobile phone using 3G/4G, it works directly. But when I try from the internet box of an other house, the connection fails and if it's successfull I can't access to the internal network of the VPN. I tried to ping my PC from the VPN server and it doesn't work.

Any ideas ?