Mysql remote connections very slow - host lookups already disabled

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http://serverfault.com – I followed every instruction about this issue and nothing helped. Remote communication with MySQL server takes 4-30 seconds on simple query like select 1 from table_name and connection attempt often ends up with SQLSTATE[HY000] [2013] Lost connection to MySQL server at 'reading authorization packet', system error: 104. This is what I did so far: [mysqld] skip-name-resolve skip-host-cache bind-address = I set all Host column values in the grant tables to remote IP address or localhost. I allowed incoming traffic on port 3306. Performed tests with every service disabled on the (HowTos)