As in default, it is in at bottom that, User active in 15 minutes, how to increase it to 30 Minute?
ACP >> Configuration >> who's online >> cut-off time
Edit : not seen sunjava1's response
may be you are referring to this :
admin panel --> configuration --> settings --> Who's Online --> Cut-off Time (mins) <-- change 15 to 30
ok thanx buddy , thrread can be locjk now