<p><a href="http://wincert.net/wp-content/uploads/2015/01/joomla2.jpg"><img class="alignnone size-full wp-image-557" src="http://wincert.net/wp-content/uploads/2015/01/joomla2.jpg" alt="joomla box" width="720" height="340" /></a></p>
<p>Recently I&#8217;ve locket myself out of Joomla Admin as I have accidentally disabled the Authentication &#8211; Joomla plug-in &#8211; JAuthentication. Joomla Admin was locked out.</p>
<p> ;</p>
<p><img class=" size-full wp-image-263" src="http://wincert.net/wp-content/uploads/2011/07/joomla login 2.PNG" alt="" width="658" height="63" border="0" /></p>
<p>When I tried to login to Joomla Backend with my Administrator account I&#8217;ve received the following error:</p>
<p><strong>JAuthentication ::__construct: Could not load authentication libraries. Username and password do not match.</strong></p>
<p>To solve this I had to edit the Joomla database table to enable Authentication &#8211; Joomla plug-in.</p>
<p><!--more--></p>
<p>Here&#8217;s how to do it:</p>
<p>Login to you <strong>CPanel</strong> | On the home page scroll down to <strong>Databases</strong> and open <strong>phpMyAdmin</strong></p>
<p>In the left pane of <strong>phpMyAdmin</strong> select your Joomla Database. From the same pane, select <strong>jos_plugins </strong>table</p>
<p>Now click on the pencil item to edit<strong> Authentication &#8211; Joomla</strong> row</p>
<p><img class=" size-full wp-image-264" src="http://wincert.net/wp-content/uploads/2011/07/joomla login 3.PNG" alt="" width="664" height="117" border="0" /></p>
<p>In the &#8216;<strong>Published</strong>&#8216; row change the value from <strong>0</strong> to <strong>1</strong></p>
<p><strong><img class=" size-full wp-image-265" src="http://wincert.net/wp-content/uploads/2011/07/joomla login 4.PNG" alt="" width="568" height="34" border="0" /></strong></p>
<p>Make sure that <strong>Save</strong> is selected from the dropdown list and click the <strong>Go</strong> button.</p>
<p>That&#8217;s it, you should be able to login to Joomla admin now</p>
<p><strong>NOTE:</strong> Once I&#8217;ve changed that, I still couldn&#8217;t login to Joomla Admin. The reason for this is that I had<strong> jos_plugins</strong> and<strong> bak_plugins</strong> tables. Once I changed the value for the<strong> bak_plugins</strong> table I was able to login.</p>
<p>In my case, duplicate tables exist because I&#8217;ve migrated from <strong>1.0</strong> to <strong>1.5.</strong></p>
<p>Comments are welcome.</p>