Webmail auto logout many times

[duy_dang2110]

Hi all ,
I used roundcube version 1.0.1 , my user complaint that webmail auto login many times in the morning , when they need to send email they have to login 2-3 times because it auto logout immediately .  I have configured session_lifetime = 0 , but the problem still there , does roundcube limit user login and using at them same time or something . Please help .