problem with ppoe and routes

hello
problem in the following
after a rupture of connection on ppoe and its installation routing for ppoe the address anew isn’t restored. that is the client pinging but the addresses registered for the address of the client - isn’t present. it is corrected by route departure in disable-enable. mikrotik versions different, 5.16, 5.4.

hi
please send for me export of your config.
/export file=config.
you can email that for me.

I am sorry, but the policy of the company doesn’t allow it. I can send screenshots with conclusions of commands.

the problem is solved./21 network which were distributed on ppoe to clients, were reserved by a route way for null.
cleaned a route and everything became normal.