Hi, It seems that I´m missing something regarding the Simultaneous-Use option as I can´t make it work yet. I´ve found that this has been asked many times before, but I´ve tried all suggested methods with no luck. Here's my config: - Fedora Core 4 fresh install, Freeradius 1.1.0 with MySQL. And I´ve done the following: - Tested with uncommented simul_count_query at sql.conf. - Tested inserting GroupName="dialup", Attribute="Simultaneous-Use", op=":=", Value=1. - Tested inserting UserName="the_one_Im_testing", Attribute="Simultaneous-Use", op=":=", Value=1. - Tested at users file: DEFAULT Auth-Type = sql Fall-Through = 1 DEFAULT Simultaneous-Use := 1 Fall-Through = 1 - Tested the same, but with DEFAULT Simultaneous-Use == 1. - Tested radiusd -sx and no Simultaneous-Use shows up when login. - Tested with checkrad script from Cistron Radius and got snmpget timeout. Checkrad from freeradius does not shows timeout. Currently I can login twice with the same user, but the user only shows up 1 time when doing radwho. Please tell me what else should I do or test to make it work. Thank you and regards, Eduardo