We have two interfaces.
One internal and one external.
External interface is connected to the Internet.
Internal interface for dhcp and pptp.
Our VPN server we installed Mikrotik.
users can get ip in dhcp server.
But when users connect to the network receive error 800!
note:
we have no rule in firewall/filter.
Please help us solve the problem.
what about the configuration? show us the PPTP server config, and also the Windows (?) client configuration
check link but there are still problems!
In the Windows settings go to the Security tab and show us what’s there.
no Security.
You can clearly see where the problem is. In RouterOS you have only selected CHAP/MSCHAP but in Windows you have selected only PAP
PPTP Server Change:
But there is still problem:
what’s inside that “PPTP profile” that you have selected to use ?
Hi,
Log PPTP session on MikroTik and run sniffer on your Windows box.
Check your settings, Windows client works with MT like a charm.
Regards, Grzegorz.
what you mean?
open the PPP menu in winbox, go to the Profiles tab and open the PPTP Profile. Post screenshot.
i post sreenshot PPTP Profile in post 3.
What’s your solution؟
plz help me. 
try to set ‘Type of VPN’ to PPTP, not Automatic