I am using shared secrect key as for example cisco123cisco or [email protected] when i enter such key in radius configuratio and on acs server user is not able to log in to the switch and shows authentication fail in acs failed report. But when I enter cisco123 then its start working. Current version of acs solution engine is 4.1.23. Please help to resolve this issue. This seems to be abnormal behaviour. If any wirk around or an upgrade is requred pl update. Thanks in adv.