I have an issue with users showing up as logged in multiple times. Usually just twice, sometimes 3 times, and in one instance a user showed logged in 22 times and they PM'ed me to ask how it happened and to log them out.

I will be looking at hacking the "Who's Logged in Module" i use (Live Pro) to have them display only once, however since they show in the backed as well, the problem is bigger than the display module.

Should I be looking at Joomla! to why this is happening? I have logins turned off for Joomla!, so it seems natural to first examine CB. It looks like if they are logged in with Remeber me checked, close their browser, open their browser and come back to the site it shows a second instance.

OK, I found double login session blocker

extensions.joomla.org/component/option,com_mtree/task,viewlink/link_id,6160/Itemid,35/

It worked, but while activated gave me some other mysql errors. I've disabled for now, but will continue to investigate.

I've leaned a lot about the session table and using the Joomla debugger... good times!