caching mechanisms and clean disconnect

[Josh Shamir]

Hi,
I've a problem regarding the clean disconnect of a client and some caching
mechanisms.
I briefly illustrate my problem :
My system is composed by freeradius and chillispot with WPA enterprise (LDAP
as backend).
When i connect a client 1 to my system all works fine, except for the time
taked by authentication process,
i'm using WinXP SP2 build-in supplicant. (How I can speed up this
procedure?Could you suggest me some opensource supplicant?)
The problem is that when I disconnect client 1 from my system (just
connecting my client to another network) and then i reconnect client1 to the
system the WPA authentication failed for about 10 minutes.After this time
authentication of client 1 works fine.
So I think that this fact is caused by some cache mechanism used by
freeradius.
How can I make sure that a Client is disconnected in clean way and remove
his session after it has disconnected inside Freeradius?

Thanks for attention
Regards, Josh
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