I'll try to keep this as simple as I can. I am using FreeRADIUS 2.2.8. When I set the "Session-Timeout := 600" for a user, the NAS is supposed to renew the session every 10 minutes. My Unifi AP recognises the attribute and actually DOES terminate the first session when it times out after 10 minutes. The problem is that it terminates only the first session, the second session lasts until the NAS reboots, the user logs out or shuts down the host. This means a user could exceed his quota if he keeps his wireless connection alive. There are some users that exceed their 7GB weekly quota by 6 GBs! Should I blame the AP firmware for this or is it a bug in FreeRADIUS 2.2.8? NB: I could send more detailed TCPDUMP and MySQL information for those who are interested. Thank you in advance. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus