Auto Login form for HPE BladeSystem Onboard Administrator websites

I've been quite successful with RDM's auto login function for most of the website sessions that require login using a form, referencing the respective fields.
However, I'm stuck with the Onboard Administrator web interface for HP Blade Enclosure administration. Nothing get's filled in automatically after the website has loaded fully though I'm sure I identified the username/password fields correctly. Even clicking manually on the Auto Login button after the website has loaded doen't result in any field getting filled.
As we've got a lot of Blade Enclosures to administrate, login in manually to them is a tiring act. I've also been experimenting with Events - After Connect - Macro and an initital wait time but results are not that satisfying as load time varies hugely depending on the location of the Blade Enclosure in the world.

These are the settings:


and what the website looks like:


And I've attached the HTML code zip archive of the website too. The relevant part is in the blank(1).html file
Maybe you can figure out why it's not working?

Thanks a lot in advance!