Thanks Fajar, i'll try to implement this way, i dont want to query the nas by snmp, i have so many nas ( and of various vendor) and i'm not responsible of their configurations and so many concurrent connections that i prefer not to rely on this. Arran, i'm sorry if you felt alone sometimes ;-)....but as i said to Fajar i've no control over the NAS devices so i prefer do all the possible on the FR server. I was not talking about accounting-request but replies stored in radpostauth where by default the postauth query store records with username password op value end date. Maybe, and i'm not an expert of postgresql, can be possible to link these two tables with another ID ? cant see a field to use now, maybe is it possible to add a new field?? I said that because in my tests an access-rejected request is still recorded in radacct table with a start time and a NULL stoptime, but nothing can link this record to the record in radpostauth, time is different too, and that record in radacct can be misrepresented as an online user even from the simultaneous user check. Thanks all for you answer -- View this message in context: http://freeradius.1045715.n5.nabble.com/racct-and-radpostauth-tp4782906p4785... Sent from the FreeRadius - User mailing list archive at Nabble.com.