pppoe falls constantly

RouterOS General
1

have a problem with my mikrotik server .. Randomly drop some customers in PPPoe, with an interval that goes from 5 minutes, up to 30 min .. We do not know what can be …
In principle, we have an old mikrotik, and nobody fell, but since we put the new mikotik, there have been problems after the problem
We do not understand what it can be,
Someone can lend us a hand

Thank you

2

Make sure that compression is off in your ppp profile you using for your customers.

3

Are they directly connected to that tick or some ware on your bridged network