I think the problem comes from the Bittorrent port connections, because this is the message:
<4>[ 2427.924643] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,79.156.252.229,6881,17> already freed
<4>[ 2427.929333] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,79.156.252.229,6881,17> already freed
<4>[ 2440.847393] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,79.156.252.229,6881,17> already freed
<4>[ 2445.025986] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,79.156.252.229,6881,17> already freed
<4>[ 2573.276441] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,90.77.223.230,28545,17> already freed
<4>[ 2573.276649] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,90.77.223.230,28545,17> already freed
<4>[ 2573.276671] [SIM4];SIM: sim_db_get_conn: Error !!! connection <192.168.202.4,6881,90.77.223.230,28545,17> already freed
6881 is bittorrent protocol port.
But i dont have rules with this port. This is one of multiple open ports on the dmz equipment (my hp ml310e g8).