Hi all,
i am not shure what is problem, with mirkrotik or with something else. Well, mikrotik routerboard 133c is working like pppoe-client and its connecting to mikrotik RB133 pppoe-server. Network behind RB133C is NAT-ed and in that network are 2 machine with windowsXP os.

All of that machines need to make connection with Windows VPN Server, but only one machine in the same time can connect to vpn server and other is waiting. There are no any restrictions for connections. What u think what can be the problem.
Thanks.

Turn on GRE and PPTP Helper services. Make sure there is not a Linksys or netgear anywhere in there, a number of them only support one connection.

Where do you NAT traffic, in rb133 ore something else behind rb133 ?

Regards.

Faton

NAT network is behind routerboard client.