The problem is not from my computer, the same effect happens when I sign in through other computers, tablet and mobile.
It's very strange but it seems that the NAS software sends a post completing 3 new characters in the password field, right after I click the login button. This happens on any computer, tablet or mobile phone, as I said.
I think the best way is to reset the NAS 'restore factory defaults'.
How to do this, using the buttons on the NAS, since I no longer have access via browser?
In this case, should I remove the disks to prevent format?
Thank you,
Marcelo.