General Questions

Dear all,

I am testing a wifi hotspot solution with M0n0wall 1.3b16 and Alepo v6.0 for AAA.
I must confess to have no previous experience with those or similar products.
I have noticed the following problem:
If a user has a time credit of T seconds (eg 100). M0n0wall disconnect it after 100+N seconds (with 0<N<60).
Monowall seems to monitor client's timeout periodically every minute. Actually, if 3 users are launched simultaneously with respectively time credit of X seconds, X+60 seconds and X + 120 s, M0n0wall disconnect them after: X+N, X+60+N, X+120+N seconds then N has same value for all users.
Is this a normal behavior or is there a way to achieve better accuracy on sessions timing?

TIA, Bernie.