Problem pc acces

Hi i have problem accessing to creator from a desktop PC with gmail.
I have always done this without problems until yesterday.
I am using three different browser, same problems, long wait time and not login in.
No problem if i enter with my smartphone.
Now i am using this.
What can be the cause?
Thanks if you want to help me.

Maybe , Help You

Thank you Rogerio
But, why can i log in from smartphone?