i am using pppoe with usermanager iam facing a problum userman one id connect maney time multi session but i am already check ppp profile only one yes but multi sesstion problem still

yes, currently there is nothing you can do. Separate routers and put each router per customer.
User is able to connect with the same PPPoE account on the multiple routers. Perhaps in the future there will be some improvements about that.

THANKS

until ROS 4.11 still got this problem (