Hello Guys i have inherited the administration of a radius server, that authenticate 900 PPPoE user on mikrotik box. i've noticed that there is some performance problem, mikrotik box show that "last request RTT" in some cases is up to 1000ms, there is some "resend" request and also some "timeouts", In order to mitigate the problem i've disabled the interim update, and the timeouts are drastically reduced. But exists. i' use mysql back-end, i've checked if there are slow queries but file is empty. ( of course is enabled... ) the server is a dual core Xeon 3.0Ghz with 1 Gb of ram. The SO is debian Linux stable, freeradius is 2.1.10 installed by debian package. Configuration of Thread/server: max_request_time = 30 cleanup_delay = 2 max_requests = 10240 thread pool { start_servers = 20 max_servers = 32 min_spare_servers = 3 max_spare_servers = 10 max_requests_per_server = 0 } Any ideas? Best Regards, -- Giuseppe Marocchio Tel: (+39) 045.5116192 Fax: (+39) 045.5111197 skype: giuseppe.marocchio