OSPF routes disappearing

I have Mikrotik 1100 as main router and connected is 1 tower with RB950 3Basebox routers conected to this tower is 1 RB950 and 2 Basebox routers i have OSPF running on all of them problem is my ospf routes dissapears sometimes for no reason this ussually occurs on main router or the 1st tower’s RB950 what can be the explanation for this ? What i do to solve it is just to mactelnet into the RB950 and reboot it then all is good again


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