couldn't remove connection

RouterOS General
1

Hi we have two problems with mikrotik v3.3 on router board 333 ppc

  1. we have many connections with status “unreplied” and big timeout;
  2. if we want to remove some connection mikrotik send me error couldn’t remove connection <10.10.10.1> <20.20.20.1> error (6);

we see the change log on v.3.2 “fixed problem - connection tracking entries could not be removed sometimes;”, but the problem still exist