I have the same problem, log in from my home PC does not work. I tried several browser and deleting the cache as well as resetting the password, none of which helped.
Thank you for the tip with the phone, logging in with the Samsung Browser works for me, too.
I then tried my laptop, from a different network. I apparently was still logged in with an old session in Chrome on the laptop. Here I got prompted to reset the password (see above), and afterwards could use the website normally.
I still cannot log in with my home PC.
