I have pptp client setup on mikrotik 2.9.2, problem is that i can ping pptp server(hosts) from my Mikrotik, but from hosts not working... can someone tell me what is the problem (link is estublisht)

report of traceruting the pptp server from pptp client host
Tracing route to xxx.xxx.xxx.xxx over a maximum of 30 hops

1 <1 ms <1 ms <1 ms xxx.xxx.xxx.xxx
2 * * * Request timed out.
3 *