Update: 2021-09-10 11:45uur
There are problems within TU Delft with the login.tudelft.nl page. Because of this it is sometimes not possible to log in. ICT is working on solving this problem. It may help to refresh a few times or wait a few minutes.

This applies to all TU Delft applications for which you have to log in.

More info on the website http://meldingen-ict.tudelft.nl