We have a LAMP Web app that passes the user to a Wndows server for a streamed media presentation when a presentation is selected from a menu. In the past few weeks we have experienced a marked increase in the number of users reporting that they are returned to the [LAMP] login when they select a presentation. It would appear that they are not passed to the Windows server and probably lose their php session variables which would send them back to the login screen. In every case the problem has been fixed by clearing the cache in the browser.
No major changes recently in this portion of the LAMP Web app. I am at a loss on how to approach this. Is there anything that we can alter in the PHP/MySQL design to affect the browser cache usage? ave there been recent changes to IE (used by a majority of our clients) that might be causing this?