Administrator is unable to log in to SSP appliance using Radius authentication. Packet capture shows that authentication was rejected by Radius. In SSH window you get an error about failed authentication.
(config-authentication)# edit realm <realm_name> test-authentication
$ special character is supported, but it must be escaped with the backslash character (\) when entering the password.
Remove $ character from the password or include backlash character when entering the password.
For more information please refer to this document.