DDVE to NetWorker Connection - invalid attribute not a valid host name

Hello community,

First time deployment for me using both DataDomain Virtual Edition and Networker (VM).

I've deployed DDVE and already have it hooked into using other backup products quite efficiently. I'd also like to explore using NetWorker (currently running 9.1.02 build 43 Evaluation).

When adding a new device for the DD, I run through the wizard and get:

Adding new Data Domain Device "DDVELAB_DDVENetworker"

Operation Failed

Invalid value for attribute 'device access information'. Name 'DDVELAB' is not a valid host name.

I've browsed the forums and the obvious proposal is of course DNS, but I've flushed DNS through, rebooted both the DDVE, DC and Networker servers. All can happily ping each other and if I throw an incorrect password into the wizard, it DOES fail to authenticate, so it must be doing some form of communication over DNS successfully.

Any other ideas guys? Would be great to get it hooked and start messing....