I have a PIX 520 running ios 6.2.4. We have this doing a site to site tunnel - tunnel is not going down , but the complaints that I am getting is that if a user is idle for more than 1 hour they are getting disconnect from their application server which is the AIX. Now I have already change the time-out connection from 1 hour to be 8, I have also changed the half-closed to be 8 hours also. I have saved the config once the changes were made yet I am still getting the disconnects . Any ideas ????