Mikrokit + PPPoE Zima Radius

Hi, I am looking for some help.

I currently have a mikrotik RB1100AHx4 Dude Edition (v6.38.4) which is setup to work with ZimaRadius service via PPPoE. My Clients are able to connect there router to the mikrotik via pppoe and get internet access, every client has it own public IP Address.

The Issues that i am having is some time the client lose the internet connection or get packet lost or website take abit longer to load. if i look on the customer router i see that the connection is still up and working and same on the mikrotik.

i have a 1Gigbit internet connection that is connected directly to the mikrotik and this connection is fine. i have check with my supplier for the internet connection and all results are fine.

if there anyway on the mikrokit that i use to monitor the pppoe session that could help me find where the fault is or has anyone had this issues?