PPPoE User start working, after restarting Router - Session Hangs

Dear Mikrotik Community

From Several Months, we are observing that users are complaining about their router becomes hang. They ususally restart their router and the internet starts working. I tried to rectify the issue, but I’m not able to fix it, most probably I can’t able to went to the target issue.

I tried to give a router static IP address, marking to my default gateway, this router never hangs when I enter manually (static IP address). But, when I provide the same router pppoe russia (username and password) router get hang sometime in 1 hours, sometime after 6 or 8 hours.

I’m attaching PPPOE-Server setting for your reference, please someone help me on this??
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