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Appendix E: Configuring an Active Directory Server
Troubleshooting
4-Port SSL/IPSec VPN Router
22. The wizard will configure Active Directory automatically, and it will notify you when the configuration is
complete.
Troubleshooting
If your users are unable to connect via Active Directory, check the following:
•
The time settings between the Active Directory server and the Router must be synchronized. Kerberos
authentication, used by Active Directory to authenticate clients, permits a maximum of a 15-minute time
difference between the Windows server and the client (the Router).
•
Make sure that your Windows server is configured for Active Directory authentication. If you are using a
Windows NT 4.0 server, then your server only supports NT Domain authentication. Typically, Windows 2000
and 2003 servers are also configured for NT Domain authentication to support legacy Windows clients.
Figure E-17: Active Directory Installation Wizard