Yes! The problem is solved. The host blocked all the IP adresses coming from outside Spain as a protection against the a hackers attack on WordPress worldwide.
An article about is: http://www.bbc.co.uk/news/technology-22152296
Thnks!
Haven’t checked it, but it was working before.. Two weeks ago, they where still able to login..
Is there a way I can share the screenshot? It’s quit a short message, just ‘Forbidden’ above the login username. Not specifying at all what the problem is.
Thnks for answering so quickly!