Non windows vWorkspace Connector via Config.xml

Hi,

I have configure config.xml for android connector access to my farm. From vWokspace android app, i'm able to download config.xml file and load my farm setting. But everytime i try to connect to my farm i'm getting error ' There are currently no logon servers available to service the logon request" which i believe authentication issue with domain controller.

i have put my domain correctly and i also have no issue while accessing my web access page(external). Any step i'm missing here?

Thank You