Dear Jordi,
I have the same problem, but with Windows VISTA!
I also get the message, that my password should be wrong!
So I enabled TLS 1.1 and TLS 1.2, following the steps under
https://johnhaller.com/useful-stuff/enab...dows-vista
The steps were successfully completed without any errors.
According to
https://www.ssllabs.com/ssltest/viewMyClient.html
TLS 1.1 and TLS 1.2 is now
activated. It is
also activated in the control center under the internet options.
Firefox is version 52.9.0 (32-Bit).
BUT:
The problem remains the same!
Pse help!
BR Peter, DL5UG