Can you please advice where I can take Network Advisor Professional edition? As I understand this edition is free of charge.
and click FREE TRIAL
BNA is a single Image, during the installation procedure you can select "Professional"
During installation we chose Tria versionl. Can we register software to Professional edition without reinstallation ?
you can ( with a valid License ) from a Trial activate to "Enterprise or Professional Plus", but you cannot revert a installed Trial to "FREE Professional"
If you have Installed as Trial and BNA is already configured, you can try to do "Partial Uninstall" and then reinstall BNA as Professional.
During the Installation / configuration you should be able to import the old DB config.
I've never tested this procedure but as sayed should work.