Can't connect to Etherlite 8 with Vista x64

Hope this is not a duplicate post. I have a working Etherlite 8 with latest realport firmware. All other non-Vista machines on my network see it fine.

Installed latest Digi realport driver on Vista x64 (40002549_B). Driver can not connect to the Etherlite. Tried both IP and MAC during setup. Uninstalled and reinstalled. Same setup works fine with a newer Digi One Port.

Ideas?

I forgot to mention. Firewall is turned off. Can ping the Etherlite successfully.

You may have exceeded the limit on how many systems you can have RealPort installed, pointing to the same EtherLite.

The number varies based on the firmware version installed. Please see the details in the kbase article referenced below:
http://www.digi.com/support/kbase/kbaseresultdetl.jsp?id=526