Unable to connect using nhibernate (no replies)

I am using nhibernate. I am getting error " Unable to connect to any of the specified MySQL hosts." when trying to connect to mysql.
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2" >
<session-factory name="nhbdemonew">
<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
<property name="connection.driver_class">NHibernate.Driver.MySqlDataDriver</property>
<property name="connection.connection_string">
Database=wmis;Data Source=localhost;User Id=root;Password=Bliss@2170;
Protocol=memory;Old Guids=True;
</property>
<property name="dialect">NHibernate.Dialect.MySQL5Dialect</property>
</session-factory>
</hibernate-configuration>