Hi, I am trying to reject user by checking session time from radacct. I am using 4 SQL query and checking various things in debug mode every SQL query looking good but the only issue updates control noop. Debug mode shows update control noop. Below is my SQL queries. /default authorize section ============================================================= update control { Tmp-String-1 := "%{sql:=============================='}" Tmp-String-2 := "%{sql:================================}" Tmp-String-3 := "%{sql:=================================}'}" Tmp-String-3 := "%{expr:%{control:Tmp-String-3} * 3600}" Tmp-String-4 := "%{sql:S=================================='}" } if(%{control:Tmp-String-4} >= 1){ if(%{control:Tmp-String-2} >= %{control:Tmp-String-3}){ update reply { Reply-Message := 'Reached Session Limit' } reject } } All SQL query working fine and showing exact value. The only problem is that update control showing noop. Some reason update control is not working. Thank you very much