I'm having the same problem with activtating my DDT as I was about a month ago but the last time, my network adapter seemed to be the problem. This time, I'm not sure what has happened.

1. My Activation Client says Activated: Yes / Network Adapter: Unknown
2. I have 3 network adapters (wired, wireless and 1394) all of which are connected and have not changed.
3. I activated using the DLL. (does that make a difference)?
4. I went online and saw that my old laptop was still activated so I deactivated it (I'm thinking that this is the root of the problem)
5. The error I get when I open the DDT is Feature Not Purchased
6. When I try to Deactivate using the Activation client (its the only option I'm given) I get Activation Error !! Exception: Unknown Adapter...yada yada...

I'm stuck but have a critical need for this to work very soon. What are my options?

Thanks