This happens because the latest versions of MySql uses a new format for the password (it's a longer hash). In order for old clients to continue to use the newer server, you have to set the passwords on the server to their old format or upgrade your client. Because upgrading the client can sometimes be a pain, it's often easier to just update the passwords to the old format on the server.
Run mysql and login as root:

mysql -u root -p

UPDATE mysql.user
SET password=OLD_PASSWORD('somepassword')
WHERE user='someuser'
AND host='somehost';

flush privileges;

This means: forcing a page postback or redirect from a client browser without explicit user input.

Why would you want to do that? The main reasons are:

Auto-redirecting to a new URL after a brief time period Refreshing page information periodically Maintaining a valid session state indefinitely Forcing a specific process to run on the server when the client session has expired.

The following methods are the constructs we have used in our web development projects:

HTML header refresh tag

The most common and best known way - a tag of the following format is placed in the HTML section of the page:

<meta http-equiv="refresh" content="8;url=http://dotnet.org.za/">

where '8' refers to the number of seconds that will elapse before the page is refreshed; 'url' is the new url redirect to. It can be excluded which means the current page will be reloaded.</LI>

This construct is useful if you have one or two pages which have to auto-refresh, and works for any HTML content type forms.  The downside is the refresh interval cannot be set dynamically, and if you are testing for session timeouts on your site, you'll have to embed this construct in every page of the site.

Response.AppendHeader method

ASP.NET provides the AppendHeader method to the Response object. Typically the page refresh can be set as follows in an ASP.NET webform (in C#):

'******* System.Web.UI.HtmlControls should be imported

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim Keywords As String = "Veritaban?ndan gelen liste"
Dim Description As String = "Veritaban?ndan gelen aç?klama"
Dim Title As String = "Ahmet Kaymaz - Bu sayfaya özel ba?l?k"

‘********** Creating a meta object for Keywords tag

Dim Meta As HtmlMeta = New HtmlMeta()

‘******* Adding name and content to object

        Meta.Attributes.Add("name", "keywords")
        Meta.Attributes.Add("content", Keywords)
        Header.Controls.Add(Meta)

‘********** Creating a meta object for Description tag
        Meta = New HtmlMeta()

        Meta.Attributes.Add("name", "description")
        Meta.Attributes.Add("content", Description)
        Header.Controls.Add(Meta)

‘*********** Update the page Title
        Page.Title = Title
End Sub