Hello there, I use radutmp file for simualtanesou use and set Simultaneous-Use := 2 -- this works very well for me. but for the third connection it fails (which is normal) but I get message Invalid User in radius.log file which is in fact confusing. radiusd[26044]: Invalid user: user@localhost/<no User-Password attribute>] How do I change or where so than I can add custom message for simultaneous-Use message like "your connection exceed the limit" etc. any example or sample would help me.