If you are a non-admin or a non-root user of the machine and the administrator has pre-installed the SSL VPN thin client on your machine, you should be connected to SSL VPN without being prompted to enter the credentials of the admin user. But, if you are still prompted to specify the credentials of the admin user, then check if the SSL VPN service is running. For more information on how to check if the SSL VPN service is running, see Verifying SSL VPN Components
in the Novell Access Manager 3.0 SP4 Administration Guide.