stale session

Sergio Diaz sdiazf at
Wed May 27 19:33:44 CEST 2015

I have a FreeRADIUS Version 2.1.12 with mysql db
I have APs from open-mesh with coova chilli. 

Sometimes when a user lost the connection to the AP from many reasons, the session in radacct table no have nothing in acctstoptime and the user can't login because i have enable a simultaneous-use=1 .

 is there a way to fix that? 
Radius can clean the stale session? 
Can i use other atributes like idle-timeout or session-timeout?

Saludos Cordiales,


 Sergio Diaz
  Infraestructura TI

  01(55) 5265.0145 
  sdiazf at

-----Mensaje original-----
De: Freeradius-Users [ at] En nombre de Alan DeKok
Enviado el: martes, 26 de mayo de 2015 07:21 a. m.
Para: FreeRadius users mailing list
Asunto: Re: stale session

On May 25, 2015, at 8:22 PM, Sergio Diaz <sdiazf at> wrote:
> I am simulating the problem on what if the AP goes down (due to  various reasons). I observed that user is not properly disconnected  and result is stale session. When the AP is up and when the previous  user tries to log in he/she gets login failed message because  "Simultaneous-Use" is in effect while previous session is still  ticking.
> How can prevent and fix  this?

  Get the AP to send accounting packets with Acct-Status-Type = Accounting-On.  That tells the server that the AP has rebooted, and the server will clear the old sessions from the DB.

  Otherwise, FreeRADIUS has no idea that the AP rebooted, and can only assume that the sessions are still active.

  Alan DeKok.

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