Freeradius incorrect acctstoptime

Alan DeKok aland at
Sun Dec 11 03:45:11 CET 2016

On Dec 10, 2016, at 2:22 AM, Sachin Yadav via Freeradius-Users <freeradius-users at> wrote:
> We have a large deployment of about 600 NAS (mixed openwrt/mikrotik/others). I have noticed that for some records, incorrect acctstoptime was marked while user session was still going on and accounting was happening.

  FreeRADIUS doesn't invent accounting packets.  You have a few choices:

a) your NAS is incorrectly sending accounting "stop" packets for sessions which are ongoing

  - rare, but not impossible.

b) something else is writing to the DB and setting acctstoptime

   - maybe you have Simultaneous-Use checking configured, and it's going wrong?

c) you've configured the server to write stop times for non-stop packets

  - possible, but not common.

> Or there may be some mis-configuration as our end. Kindly let me know.

  Log all SQL queries, and all accounting packets.  Then, see which ones update acctstoptime.  And find out why...

  Alan DeKok.

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