l2tp client problem

I have configured L2tp client on mikrotik 951 to open some blocked apps. I’ve done the mangle routing mark for the network ,NAT and the default route to go through the l2tp connection.
the problem is the L2tp interface RX is always 0 as shown in the attached pic. I don’t know what’s the problem !
NOTE: when I try the L2tp account on another 951 routerboard it works fine
lt2p.PNG

Make sure you have a route to the l2tp server, otherwise you are making forwarding loop over the default route.

Is this correct !
lt2p3.PNG
lt2p2.PNG

Your screenshots do not show any routes to the L2TP server.

Umm,I think all the traffic with the local mark routing will go to the internet through the l2tp

still have no solution.