Problemas al entrar en ai2.appinventor.mit.edu

Hola. Desde hace dos dias no puedo entar en ai2.appinventor.mit.edu . No me deja logarme. Se queda la pantalla parada y no lanza la ventana de login.
Tengo Win10. Lo he probado con varios navegadores: Firefox y crome. También lo he probado desde android. El resultado es siempre elmismo.
Por favor. Alguien puede ayudarme.
Gracias!

This is the second post about connections from Spain this morning, could be a local (national) issue with internet in Spain ?

Perhaps your Broadband supplier can help - for example, the MIT address may have been blacklisted (by mistake).

A similar issue happens in Colombia https://community.appinventor.mit.edu/search?q=colombia
The problem in that case is the providers are blocking the App Inventor web site. You might follow the advice in those posts

There is another possibility - Windows WebClient Service has failed or is disabled. You or your IT Team may have done this to safeguard against the exploitation of a Windows bug that allows the Windows Adobe Type Manager Library to be accessed by an attacker who could then damage your system - for example, by encrypting your files. Affects all Windows OS.