Nomad Programmer

<p>It will help you to make only one logged in at a time on WordPress sites. if user wants to log in two or other places than it will destroy all other sessions.</p>
<p>This Plugin uses function like WordPress 4.1, that have a button on the user profile screen which clears all other sessions, and on the user editing screen which clears all sessions. This plug-in can limit simultaneous login. This plugin use for every user automatically.</p>
<h3>Licence</h3>
<p><a href="https://wordpress.org/about/gpl/" rel="ugc">GNU General Public License</a></p>


One Active session

Working till now

This plugin clears all other logged in sessions and allow only one login by one user

ruudkok

<p>Don’t keep logging in to your WordPress admin panel over and over again. Install this plugin to remain logged in to your blog for up to a year (unless you log out manually).</p>


WP Keep Me Logged In

This plugin will increase the session time of your WordPress login cookie to 1 year. That way you won't have to login over and over again.

One Active session vs WP Keep Me Logged In