Hi Vlad,
If you see no message at all, your template has probably not included system messages (see trouble shooting guide, item 8).
Please try to log in with a wrong username and/or a wrong password. You should then see a message saying that your username/password is wrong. Do you see that message? If not: your template is the problem. If yes, let me know, by email to webdesign(AT)innato(DOT)nl , but I will then ask for the site URL and a temporary access to your site (for testing).
Regards

Vladimir,
Something has gone wrong here... I have accidentally erased your reply.
Sorry about that. I understood that you have the Business Edition of the plug-in and there is no notice at all.

Vladimir wrote:
Dear Vlad,
It is not fully clear to me what the exact problem is...
You posted your message in the Login One! Premium category, so I assume that you currently have the Premium Edition.
(1) Is there no notification message at all when the 2nd log-in is blocked?
(2) Or is there a notification message, but the message does not include a 'close session' link?
(3) What do you mean by "close session link"? Do you mean a clickable link that forces the other session to be logged out?
==
(1) Did you look at the trouble shooting guide (item 8)? www.innato.nl/13-tutorials/55-troublesho...gin-one-plug-in-j3-x
(2) and (3) A clickable link to force a logout of the user's other session(s) is only available in the Business Edition. Would you rather get the Business edition instead of your present Premium Edition, see our Discount & Refund policy: www.innato.nl/index.php?option=com_conte...&catid=11&Itemid=196

Hi

After some configuration we have fully functional the plugin. But when our users try to connect more than once the notification message with the close session link is not displayed and our users can´t close the session. Could you help us please?

Regards