Users constantly shown as logged in - Issue with date

[H3C x Nevz]

Hey guys, I've had a problem for the past day or so, where two members and one Spider are shown as constantly online on the Who's Online page and the Currently Active Users section of the Index.

This even occurred once in the MGC Chatbox we have installed, where the User's Chat stayed above every other Chat, as though it were stickied, however it was only because the date on the Chat was '6-26-2012'.

Here is an example of what I am seeing in the Who's Online page, and below that what we see on one of the User's Profile Pages.





As you can see, latest activity displays correctly, and as such I really don't know how to go about fixing this problem.

I've tried editing the Users' latest activity via the ACP, but it didn't change anything.

If anyone can help, I'd really appreciate it as this problem has been bugging me for days!

Thanks.

[ChopSuey]

Edit the cookie session timeout ?

[H3C x Nevz]

Just edited it, I'll see how it works out.
I don't think it'll work, their profiles show them as offline as normal.

Has anyone heard of or experienced this issue before?

[Marco van Herwaarden]

This looks like the following scenario to me:
- These (3) users where logged in at a time that the server date was set to 6-26-2012.
- The entries for these users in the session table are timestamped with the date 6-26-2012.
- Server date was corrected, so current date is in 2010.
- When sessions are cleaned up (sessions older then the cookie timeout are removed) it see these users as not been unactive in the past 15 minutes (or whatever your cookie timeout is set to), so they are not removed and stay 'active' until 15 minutes after their last recorded action.
- These users will show as online until 2012.

To solve this problem restart MySQL, reboot the server or empty the session table.