welcome to the Polycom Community.
This is a good opportunity to raise the awareness of existence of the new FAQ => here <=.
The Username & Password are only needed if used in provisioned mode. If in standalone mode (skipped Username & password) the software has certain limitations.
Please check the FAQ and the relevant Release Notes.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
Polycom Global Services
If official support is required please check how to phone or open a case here----------------