why log out automatic in my forum after 5 or 6 min

[Avant]

why log out automatic in my forum after 5 or 6 min

 

[Grinderhand]

AdminCP -> vBulletin Options -> Cookies & HTTP Header Options -> Session Timeout

 

[Avant]

i want stop this so what i have to do

 

[Grinderhand]

Session timeout is given in seconds. Increase session timeout.