Absoluut genius.
That worked. Thnx.
This is from the documentation b.t.w:
Better Appliance Security
When you deploy a new vCloud Usage Meter appliance, as part of the process you will be prompted for passwords for two accounts: root and usgmtr.
Use the usgmtr account to log in and set the web application password.
But since there never was a username to login to the web application I figured I would have to use the account 'usgmtr' to login to the webconsole.
Maybe they should change the documentation to something like this:
Better Appliance Security
When you deploy a new vCloud Usage Meter appliance, as part of the process you will be prompted for passwords for two accounts: root and usgmtr.
Use the usgmtr account to log in to the console of the appliance and use the command 'webpass' set the password for the admin account.
The account 'admin' along with the password set using the webpass can be used to login to the web application via: https://<ip or dns):8443/um/