I have a curious problem with my FreeRADIUS 2.1.10 installation. I'm using a PostgresQL backend and something close to the default config. It seems that sometimes (judging from the value of affected sessions this is a fairly rare occurrence) a duplicate entry is added to the radacct table which has a different acctuniqueid to its related duplicate entries. Relevant radconf2xml snippet is: <acct_unique> <key>User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port</key> </acct_unique> Related entries I'm looking at in the radacct table are: username, acctsessionid, nasipaddress, framedipaddress, nasportid. I have checked these with a script and confirmed that I have a number of entries which share all these attributes yet have different acctuniqueids. This is a problem for me since it causes my billing software to overconsume usage. I could change this to not use acctuniqueid, but a fixed acctuniqueid would make my life easier. Any ideas? Best, -AL.