Note: the specific wording of the error message is not critical.
The screen will flash from black to white a few times (keep holding).
You should see, "Loading...."
If the HDU will not connect to the network after multiple attempts at the preceding procedure, then the issue is most likely on the physical layer of the network.
Call Technical Support at 1-800-959-6004 and provide as much of the following information as possible. If none can be provided, please call anyway, and provide us with the Project Name and any previous Technical Support Inquiry Numbers related to that project.
If you generate an error regarding a missing file or files, after several attempts at the above procedure, contact Technical Support at 1-800-959-6004. Please provide us with the Project Name and any previous Technical Support Inquiry Numbers related to that project.