Hi guys,
I know that this behavior is not perfect but Drupal (the CMS that our main site is based on) and vBulletin (our forum software) are not really made for each other. It was tough enough to glue these two together but in regards to session handling and expiration you can't synchronize them 100%.
TSA and
VB are still two different applications and use two different session cookies. While you can set the session lifetime in
VB, you cannot do so in Drupal. So it is a matter of guess work and browser settings and so on. The
VB session is currently set to expire after 24 hrs.
The logins are linked together though. When your are logged out in both, you can log in in either one and you will be logged in th other as well. The safest thing to do is, logout in TSA then log back in in TSA. You'll be fine in both then.
I do not have these issues as some of the above describe. That shows that also local settings and browser properties are involved as well.
Well, sorry for the inconveniences, we married Drupal with
VB and try our best to keep them both together in love and harmony ...