User Jb51net Login failed. Reason: The password for this account must be changed _mssql

Server error in '/' Application. User ' Jb51net ' login failed. Reason: The password for this account must be changed.
Note: An unhandled exception occurred during the execution of the current WEB request. Check the stack trace for more information about the error and where the error occurred in the code.

Exception Details: System.Data.SqlClient.SqlException: User ' jb51net ' login failed. Reason: The password for this account must be changed.

SOURCE Error:

An unhandled exception was generated during the execution of the current WEB request. You can use the following exception stack trace to determine information about the cause of the exception and where it occurred.
Stack trace:

[SqlException: User ' jb51net ' login failed. Reason: The password for this account must be changed. ] System.Data.SqlClient.ConnectionPool.GetConnection (boolean& isintransaction) +552 System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection (sqlconnectionstring options, boolean& isintransaction) +372 System.Data.SqlClient.SqlConnection.Open () +384 BoojobNet.Components.Systems.System_ Parameter_title (String Subid) BoojobNet.Person.Index.efb3613fecfd25e8 () BoojobNet.Person.Index.de97676d01739ced ( Object e0292b9ed559da7d, EventArgs FBF34718E704C6BC) System.Web.UI.Control.OnLoad (EventArgs e) +67 System.Web.UI.Control.LoadRecursive () +35 System.Web.UI.Page.ProcessRequestMain () +750 reasons and resolutions are as follows:
SQL Server 2005 , the 2008 User security mechanism has been upgraded.

When you create a user, if you choose SQL Server Authentication, you add 3 optional policies.
1, the enforcement of password policy,
2, mandatory password expiration,
3, the user must change the password at the next login
Are these policies similar to the user policies of Windows Server?
Create a user is, these policies by default tick, if you remove these policies, created by users directly to the site, there will be the title of the error mentioned: Reason: The account password must be changed.
Fixing this error is simple:
1, through Management Studio to modify the user password (need to use the creation of the account password login, can not use the Windows Authentication login after the change, if not login to take the next step)
2, SA or Windows login to re-create the new user name (must be a new username, previously used are not used), and the password 3 policy options are all canceled, so there will not be to modify the user password problem, you can directly access the

In addition: the system login password and database password can not be the same.

If it's still not working. Suggested reference to this article: http://www.jb51.net/article/70809.htm