I have oracle personal server edition setup on a windows 2k pro laptop. Whilst setup as a workgroup it is possible to use the database and connect via sql+. When i change from workgroup to a domain it will not connect any more. I have tried changing the tnslistener file to all sorts of configurations but it refuses to work. I have also done exactly the same thing with 2kserver running oracle 8i and this works fine. The server also acts as domain controller and dns server. I have tried changing to ip address and putting in the full DNS name and this hasn`t worked either. Any Ideas?