Dropbox for S Mode will not sign-in

[Dimitri K.1]

On my new Computer, the dropbox desktop app works fine but Dropbox for S-mode cannot sign-in.

I get a spinning circle and the sign-in process never completes.

Any ideas what could be causing it?

[Dimitri K.1 · Accepted solution]

I managed to solve the problem. I remembered Windows 10 has options to reset apps, so I did that and subsequently, the sign-in worked.