Em my.ini ou my.cnf você deve desativar a opção
skip-federated
Para o meu my.ini eu tive que mudar:
# commented in by lampp security
# skip-networking
skip-federated
para
# commented in by lampp security
# skip-networking
# skip-federated
skip-federated
# commented in by lampp security
# skip-networking
skip-federated
# commented in by lampp security
# skip-networking
# skip-federated
