I have a PPTP-Server in my office and all work fine but now I want change to L2TP-Server without IPSec and my clients to L2TP-Client so I do a tested with 2 mikrotik (server and client L2TP) and one modem adsl 2wire.
The mikrotik l2tp-server is a DMS-Plus into the modem adsl and I follow the manual mikrotik l2tp http://www.mikrotik.com/testdocs/ros/3.0/vpn/l2tp.php.
It very rare because when I configured the server and client the link was stablished about 2 minute and after the link down so I turn off all (mikrotiks and modem adsl) and I turn on the devices and one again the link up about 2 minute and then link down one more time, I don't know what happened. When the link was disconnected the client-l2tp not connecting anymore.
Any idea what happened with this?