weird bug on accessing server to connect to MySQL

[Le Duc Hieu]

im using herbinate-mapping to develope my web application project but i got trouble to connect to my server which stores my database, when i connect to th server it occurs an error it says "Access denied for user 'my current username'@'the ip server' to database 'my database'", i set the ip address to another server but it still gets the current ip server(localhost) to connect, anyone knows this issue please help me to resolve it, i wanna access the current server(192.168.1.191) but it still accesses to(192.168.1.190)(localhost)

here is the contents of my web.config file.

    <configSections>
        <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/>
        <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
            <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
                <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
                    <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
                    <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                    <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                    <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
                </sectionGroup>
            </sectionGroup>
        </sectionGroup>
    </configSections>
    <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
        <session-factory>
            <property name="dialect">NHibernate.Dialect.MySQLDialect</property>
            <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
            <property name="connection.driver_class">NHibernate.Driver.MySqlDataDriver</property>
            <property name="connection.connection_string">Server='192.168.1.191';Database='gamelog';User ID='username';Password='password'</property>
            <property name="connection.isolation">ReadCommitted</property>
            <mapping assembly="ManagementTool.DataAccess"/>
        </session-factory>
    </hibernate-configuration>
    <appSettings/>
    <connectionStrings/>

hope everyone to help me to fix this error, view the attach file for more details.
thanks in advance.