Fabian Borot writes:
the cpu shows almost 100 % idle at that time and the pc were kamailio is running has nothing else running but kamailio. this is my config file:
i recently noticed a problem with linux kernel that caused the host to respond very slowly to everything. the solution was to add pci=nomsi parameter to kernel.
in your case, perhaps something strange is happening with database or dns during authentication.
-- juha