DNN Host Login PassWord Lost

Method 1:
Goto your website and register as a new user
    * make sure to remember the username and password we will need this later!
Login to your database and locate the “Users” table.
Copy the information in the password cell for the new user you created.
Paste the password you copied into the password field of the host or admin account needing the password reset.
Delete the user the user you created in Step 1.
Save the table.

You should be able to login with the host or admin account with the new password you created during the registration process.

If you are still unable to login then try the next method.

Method 2:
Goto your website and register as a new user
* make sure to remember the username and password we will need this later!
Run the following query, replacing “KNOWNUSERNAME” with the username of the user you created, and replace “LOSTUSERNAME” with the user your trying to reset (host or admin):

/*
-- Database Utility ---------------------------------------------------------------------------
Description : Reset a Password in a DotNetNuke database
Author : Tony Tullemans
Date Created : 18.04.2007
Note/s : Before you run this script you must know the UserName and Password of another
registered DNN user in the database you wish to affect.
-----------------------------------------------------------------------------------------------
*/

DECLARE @databaseName VARCHAR(128)
SELECT @databaseName = DB_NAME()

PRINT 'RESET PASSWORD IN DATABASE : ' + @databaseName
PRINT '-----------------------------' + REPLICATE('-', DATALENGTH(@databaseName ));

DECLARE @knownUserName NVARCHAR(128)
DECLARE @lostUserName NVARCHAR(128)
DECLARE @lostUserId NVARCHAR(128)
DECLARE @knownPassword NVARCHAR(128)
DECLARE @knownSalt NVARCHAR(128)

SET @knownUserName = 'KNOWNUSERNAME'
SET @lostUserName = 'LOSTUSERNAME'

SELECT @knownPassword = Password, @knownSalt = PasswordSalt
FROM aspnet_Membership
INNER JOIN aspnet_users
ON aspnet_Membership.UserId = aspnet_users.UserId
where UserName = @knownUserName;

PRINT ''
PRINT 'Known Password for "' + @knownUserName + '" is : ' + @knownPassword
PRINT 'Known Password Salt for "' + @knownUserName + '" is : ' + @knownSalt

SELECT @lostUserId = aspnet_Membership.UserId
FROM aspnet_Membership
INNER JOIN aspnet_users
ON aspnet_Membership.UserId = aspnet_users.UserId
WHERE UserName = @lostUserName;

PRINT ''
PRINT 'UserID for "' + @lostUserName + '" is : ' + @lostUserId
PRINT ''

IF (DATALENGTH(@lostUserName) <= 0 OR @lostUserName IS NULL)
PRINT 'Invalid Lost User Name ' + @lostUserName
ELSE BEGIN
IF (DATALENGTH(@knownUserName) <= 0 OR @knownUserName IS NULL)
PRINT 'Invalid Lost User Name ' + @lostUserName
ELSE BEGIN
IF (DATALENGTH(@knownPassword) <= 0 OR @knownPassword IS NULL)
PRINT 'Invalid Known Password ' + @knownPassword
ELSE BEGIN
IF (DATALENGTH(@knownSalt) <= 0 OR @knownSalt IS NULL)
PRINT 'Invalid Known Salt ' + @knownSalt
ELSE BEGIN
PRINT ''
PRINT 'BEFORE'
SELECT left(UserName, 12) as UserName, aspnet_Membership.UserId, left(Email, 20) as Email, Password, PasswordSalt
FROM aspnet_Membership INNER JOIN aspnet_users ON aspnet_Membership.UserId = aspnet_users.UserId
WHERE UserName IN ( @knownUserName, @lostUserName );
PRINT ''
PRINT 'Changing Password for User Id : "' + @lostUserId + '" to "' + @knownPassword + '"'
PRINT ''
UPDATE aspnet_Membership
SET Password = @knownPassword,
PasswordSalt = @knownSalt
-- SELECT UserId, Password, PasswordSalt
-- FROM aspnet_Membership
WHERE UserId = @lostUserId;
PRINT ''
PRINT 'AFTER'
SELECT left(UserName, 12) as UserName, aspnet_Membership.UserId, left(Email, 20) as Email, Password, PasswordSalt
FROM aspnet_Membership INNER JOIN aspnet_users ON aspnet_Membership.UserId = aspnet_users.UserId
WHERE UserName IN ( @knownUserName, @lostUserName );
END
END
END
END
GO

PRINT ''
PRINT ' * * * END OF SCRIPT * * *'
PRINT ''
GO

This query will copy the password of your new user overtop the password of your lost user. Once its run you should be able to login to DNN with the new password.