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Cause: ASP.Net 2.0 Providers are trying to pull from the server's (nonexistent) Providers database.
By default the machine.config file is trying to pull the Provider information from a SQLExpress database using an invalid connection string named "LocalSQLServer". Many web servers will not have SQLExpress enabled, and will not have this value set to a valid SQL Server database that is of use to you. In a shared hosting environment, this is especially true, as it would be expected that you would want your Provider information stored in your database and not some single database shared by the other users of that web server.
Fix:
Since you probably cannot access the machine.config file, you need to override the Provider settings in your web.config file, and set the connection string name to your connection string name. The following code comes from the machine.config file and has been modified to first remove each provider before adding the provider.
Add the following code to your web.config file just under the "<system.web>" tag.
Make sure to replace the 3 occurrences of connectionStringName="LocalSQLServer" with your connection string name.
This goes in the system.web section of web.config.
<membership>
<providers>
<remove name="AspNetSqlMembershipProvider" />
<add name="AspNetSqlMembershipProvider"
type="System.Web.Security.SqlMembershipProvider,
System.Web, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a"
connectionStringName="LocalSQLServer"
enablePasswordRetrieval="false"
enablePasswordReset="true"
requiresQuestionAndAnswer="true"
applicationName="/"
requiresUniqueEmail="false"
passwordFormat="Hashed"
maxInvalidPasswordAttempts="5"
minRequiredPasswordLength="7"
minRequiredNonalphanumericCharacters="1"
passwordAttemptWindow="10"
passwordStrengthRegularExpression="" />
</providers>
</membership>
<profile>
<providers>
<remove name="AspNetSqlProfileProvider" />
<add name="AspNetSqlProfileProvider"
connectionStringName="LocalSQLServer"
applicationName="/"
type="System.Web.Profile.SqlProfileProvider,
System.Web, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a" />
</providers>
</profile>
<roleManager>
<providers>
<remove name="AspNetSqlRoleProvider" />
<add name="AspNetSqlRoleProvider"
connectionStringName="LocalSQLServer"
applicationName="/"
type="System.Web.Security.SqlRoleProvider,
System.Web, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a" />
</providers>
</roleManager>
Your database must be configured for the ASP.Net 2.0 Providers. This article assumes that you have already configured your database to use ASP.Net 2.0 Providers. If you haven't, there is an article at
http://aquesthosting.com/ASPNetProvidersSQL2005.